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10231205120 = 28519420691
BaseRepresentation
bin10011000011101001…
…11100110100000000
3222102000211001220222
421201310330310000
5131423142030440
64411122122212
7511352544233
oct114164746400
928360731828
1010231205120
114380280924
121b964b0368
13c7087c136
146d0b4941a
153ed32d2b5
hex261d3cd00

10231205120 has 72 divisors (see below), whose sum is σ = 25796833440. Its totient is φ = 3877079040.

The previous prime is 10231205119. The next prime is 10231205123. The reversal of 10231205120 is 2150213201.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10231205123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 186026 + ... + 234665.

Almost surely, 210231205120 is an apocalyptic number.

10231205120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10231205120 is an abundant number, since it is smaller than the sum of its proper divisors (15565628320).

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

10231205120 is an equidigital number, since it uses as much as digits as its factorization.

10231205120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 420731 (or 420717 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 17.

Adding to 10231205120 its reverse (2150213201), we get a palindrome (12381418321).

The spelling of 10231205120 in words is "ten billion, two hundred thirty-one million, two hundred five thousand, one hundred twenty".

Divisors: 1 2 4 5 8 10 16 19 20 32 38 40 64 76 80 95 128 152 160 190 256 304 320 380 608 640 760 1216 1280 1520 2432 3040 4864 6080 12160 24320 420691 841382 1682764 2103455 3365528 4206910 6731056 7993129 8413820 13462112 15986258 16827640 26924224 31972516 33655280 39965645 53848448 63945032 67310560 79931290 107696896 127890064 134621120 159862580 255780128 269242240 319725160 511560256 538484480 639450320 1023120512 1278900640 2046241024 2557801280 5115602560 10231205120