Search a number
-
+
231022013310 = 232511317527599
BaseRepresentation
bin1101011100100111111…
…1000010101101111110
3211002022022200020120100
43113021333002231332
512241113113411220
6254044031301530
722455640466334
oct3271177025576
9732268606510
10231022013310
1189a809a3a30
123893497a8a6
1318a2935b07a
14b278167b54
156021b7bd90
hex35c9fc2b7e

231022013310 has 96 divisors (see below), whose sum is σ = 676400025600. Its totient is φ = 54198705600.

The previous prime is 231022013293. The next prime is 231022013329. The reversal of 231022013310 is 13310220132.

231022013310 is a `hidden beast` number, since 2 + 310 + 2 + 20 + 1 + 331 + 0 = 666.

It is a super-2 number, since 2×2310220133102 (a number of 24 digits) contains 22 as substring.

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

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3733110 + ... + 3794489.

It is an arithmetic number, because the mean of its divisors is an integer number (7045833600).

Almost surely, 2231022013310 is an apocalyptic number.

231022013310 is an abundant number, since it is smaller than the sum of its proper divisors (445378012290).

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

231022013310 is a wasteful number, since it uses less digits than its factorization.

231022013310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7527654 (or 7527651 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 231022013310 its reverse (13310220132), we get a palindrome (244332233442).

The spelling of 231022013310 in words is "two hundred thirty-one billion, twenty-two million, thirteen thousand, three hundred ten".

Divisors: 1 2 3 5 6 9 10 11 15 18 22 30 31 33 45 55 62 66 90 93 99 110 155 165 186 198 279 310 330 341 465 495 558 682 930 990 1023 1395 1705 2046 2790 3069 3410 5115 6138 10230 15345 30690 7527599 15055198 22582797 37637995 45165594 67748391 75275990 82803589 112913985 135496782 165607178 225827970 233355569 248410767 338741955 414017945 466711138 496821534 677483910 700066707 745232301 828035890 1166777845 1242053835 1400133414 1490464602 2100200121 2333555690 2484107670 2566911259 3500333535 3726161505 4200400242 5133822518 7000667070 7452323010 7700733777 10501000605 12834556295 15401467554 21002001210 23102201331 25669112590 38503668885 46204402662 77007337770 115511006655 231022013310