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10311110020 = 22579157197211
BaseRepresentation
bin10011001101001011…
…10000110110000100
3222121121011122211201
421212211300312010
5132104121010040
64423054512244
7513342663151
oct114645606604
928547148751
1010311110020
114411397632
121bb9205684
13c842a8143
146db5c9228
15405363a9a
hex266970d84

10311110020 has 96 divisors (see below), whose sum is σ = 22284218880. Its totient is φ = 4006679040.

The previous prime is 10311110009. The next prime is 10311110023. The reversal of 10311110020 is 2001111301.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 10311109979 and 10311110006.

It is not an unprimeable number, because it can be changed into a prime (10311110023) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 48867715 + ... + 48867925.

It is an arithmetic number, because the mean of its divisors is an integer number (232127280).

Almost surely, 210311110020 is an apocalyptic number.

10311110020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10311110020 is an abundant number, since it is smaller than the sum of its proper divisors (11973108860).

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

10311110020 is a wasteful number, since it uses less digits than its factorization.

10311110020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 653 (or 651 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 10.

Adding to 10311110020 its reverse (2001111301), we get a palindrome (12312221321).

The spelling of 10311110020 in words is "ten billion, three hundred eleven million, one hundred ten thousand, twenty".

Divisors: 1 2 4 5 10 20 79 157 158 197 211 314 316 394 395 422 628 785 788 790 844 985 1055 1570 1580 1970 2110 3140 3940 4220 12403 15563 16669 24806 30929 31126 33127 33338 41567 49612 61858 62015 62252 66254 66676 77815 83134 83345 123716 124030 132508 154645 155630 165635 166268 166690 207835 248060 309290 311260 331270 333380 415670 618580 662540 831340 2443391 2617033 3283793 4886782 5234066 6526019 6567586 9773564 10468132 12216955 13052038 13085165 13135172 16418965 24433910 26104076 26170330 32630095 32837930 48867820 52340660 65260190 65675860 130520380 515555501 1031111002 2062222004 2577777505 5155555010 10311110020