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10031232312 = 2332200369557
BaseRepresentation
bin10010101011110100…
…00111010100111000
3221220002112101210200
421111322013110320
5131020443413222
64335220042200
7503404032153
oct112572072470
927802471720
1010031232312
114288407342
121b3b533360
13c3b30432a
146b2372c9a
153da9cbeac
hex255e87538

10031232312 has 48 divisors (see below), whose sum is σ = 27181875240. Its totient is φ = 3342026688.

The previous prime is 10031232307. The next prime is 10031232329. The reversal of 10031232312 is 21323213001.

10031232312 is a `hidden beast` number, since 10 + 0 + 312 + 32 + 312 = 666.

10031232312 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 109438 + ... + 178994.

Almost surely, 210031232312 is an apocalyptic number.

10031232312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

10031232312 is an abundant number, since it is smaller than the sum of its proper divisors (17150642928).

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

10031232312 is a wasteful number, since it uses less digits than its factorization.

10031232312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71572 (or 71565 counting only the distinct ones).

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

Adding to 10031232312 its reverse (21323213001), we get a palindrome (31354445313).

The spelling of 10031232312 in words is "ten billion, thirty-one million, two hundred thirty-two thousand, three hundred twelve".

Divisors: 1 2 3 4 6 8 9 12 18 24 36 72 2003 4006 6009 8012 12018 16024 18027 24036 36054 48072 69557 72108 139114 144216 208671 278228 417342 556456 626013 834684 1252026 1669368 2504052 5008104 139322671 278645342 417968013 557290684 835936026 1114581368 1253904039 1671872052 2507808078 3343744104 5015616156 10031232312