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231201001232010 = 23352373950379479
BaseRepresentation
bin110100100100011010101101…
…100011001101011010001010
31010022121121012022000210011000
4310210122231203031122022
5220300444122303411020
62135420135041115430
766461502225031605
oct6444325543153212
91108547168023130
10231201001232010
1167738880885967
1221b20377628b76
139c012125649b4
14411428c48733c
151bae1068ca090
hexd246ad8cd68a

231201001232010 has 128 divisors (see below), whose sum is σ = 644212486656000. Its totient is φ = 58893206746176.

The previous prime is 231201001232009. The next prime is 231201001232167. The reversal of 231201001232010 is 10232100102132.

231201001232010 is a `hidden beast` number, since 2 + 312 + 0 + 10 + 0 + 12 + 320 + 10 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 20600550 + ... + 29778929.

It is an arithmetic number, because the mean of its divisors is an integer number (5032910052000).

Almost surely, 2231201001232010 is an apocalyptic number.

231201001232010 is an abundant number, since it is smaller than the sum of its proper divisors (413011485423990).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

231201001232010 is a wasteful number, since it uses less digits than its factorization.

231201001232010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50380257 (or 50380251 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 231201001232010 its reverse (10232100102132), we get a palindrome (241433101334142).

The spelling of 231201001232010 in words is "two hundred thirty-one trillion, two hundred one billion, one million, two hundred thirty-two thousand, ten".

Divisors: 1 2 3 5 6 9 10 15 18 23 27 30 45 46 54 69 90 115 135 138 207 230 270 345 414 621 690 739 1035 1242 1478 2070 2217 3105 3695 4434 6210 6651 7390 11085 13302 16997 19953 22170 33255 33994 39906 50991 66510 84985 99765 101982 152973 169970 199530 254955 305946 458919 509910 764865 917838 1529730 2294595 4589190 50379479 100758958 151138437 251897395 302276874 453415311 503794790 755692185 906830622 1158728017 1360245933 1511384370 2267076555 2317456034 2720491866 3476184051 4534153110 5793640085 6801229665 6952368102 10428552153 11587280170 13602459330 17380920255 20857104306 31285656459 34761840510 37230434981 52142760765 62571312918 74460869962 104285521530 111691304943 156428282295 186152174905 223382609886 312856564590 335073914829 372304349810 558456524715 670147829658 856300004563 1005221744487 1116913049430 1675369574145 1712600009126 2010443488974 2568900013689 3350739148290 4281500022815 5026108722435 5137800027378 7706700041067 8563000045630 10052217444870 12844500068445 15413400082134 23120100123201 25689000136890 38533500205335 46240200246402 77067000410670 115600500616005 231201001232010