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10031212040 = 2351571159631
BaseRepresentation
bin10010101011110100…
…00010011000001000
3221220002111100222212
421111322002120020
5131020442241130
64335215404252
7503403616103
oct112572023010
927802440885
1010031212040
1142883a3093
121b3b523688
13c3b2c8035
146b236973a
153da9c5e95
hex255e82608

10031212040 has 32 divisors (see below), whose sum is σ = 22584735360. Its totient is φ = 4009905600.

The previous prime is 10031212001. The next prime is 10031212063. The reversal of 10031212040 is 4021213001.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16976 + ... + 142655.

It is an arithmetic number, because the mean of its divisors is an integer number (705772980).

Almost surely, 210031212040 is an apocalyptic number.

10031212040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10031212040 is an abundant number, since it is smaller than the sum of its proper divisors (12553523320).

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

10031212040 is a wasteful number, since it uses less digits than its factorization.

10031212040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161213 (or 161209 counting only the distinct ones).

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

Adding to 10031212040 its reverse (4021213001), we get a palindrome (14052425041).

The spelling of 10031212040 in words is "ten billion, thirty-one million, two hundred twelve thousand, forty".

Divisors: 1 2 4 5 8 10 20 40 1571 3142 6284 7855 12568 15710 31420 62840 159631 319262 638524 798155 1277048 1596310 3192620 6385240 250780301 501560602 1003121204 1253901505 2006242408 2507803010 5015606020 10031212040