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10031102420 = 225796348799
BaseRepresentation
bin10010101011110011…
…00111100111010100
3221220002021210121212
421111321213213110
5131020430234140
64335213200552
7503402651363
oct112571474724
927802253555
1010031102420
114288328799
121b3b490158
13c3b28a181
146b233b7da
153da9a3765
hex255e679d4

10031102420 has 24 divisors (see below), whose sum is σ = 21331968000. Its totient is φ = 3961649952.

The previous prime is 10031102387. The next prime is 10031102429. The reversal of 10031102420 is 2420113001.

It is a junction number, because it is equal to n+sod(n) for n = 10031102395 and 10031102404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10031102429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3172820 + ... + 3175979.

It is an arithmetic number, because the mean of its divisors is an integer number (888832000).

Almost surely, 210031102420 is an apocalyptic number.

10031102420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10031102420 is an abundant number, since it is smaller than the sum of its proper divisors (11300865580).

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

10031102420 is a wasteful number, since it uses less digits than its factorization.

10031102420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6348887 (or 6348885 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 10031102420 its reverse (2420113001), we get a palindrome (12451215421).

The spelling of 10031102420 in words is "ten billion, thirty-one million, one hundred two thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 79 158 316 395 790 1580 6348799 12697598 25395196 31743995 63487990 126975980 501555121 1003110242 2006220484 2507775605 5015551210 10031102420