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100031202312 = 23315726547559
BaseRepresentation
bin101110100101001010…
…0110000010000001000
3100120012100100120202220
41131022110300100020
53114330441433222
6113541555454040
710140603122226
oct1351224602010
9316170316686
10100031202312
1139472007938
12174782b7320
139582115a52
144bad263b16
152906d4eb5c
hex174a530408

100031202312 has 32 divisors (see below), whose sum is σ = 251670868800. Its totient is φ = 33131352384.

The previous prime is 100031202301. The next prime is 100031202331. The reversal of 100031202312 is 213202130001.

It is a junction number, because it is equal to n+sod(n) for n = 100031202291 and 100031202300.

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, 13270012 + ... + 13277547.

It is an arithmetic number, because the mean of its divisors is an integer number (7864714650).

Almost surely, 2100031202312 is an apocalyptic number.

100031202312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

100031202312 is an abundant number, since it is smaller than the sum of its proper divisors (151639666488).

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

100031202312 is a wasteful number, since it uses less digits than its factorization.

100031202312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26547725 (or 26547721 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 100031202312 its reverse (213202130001), we get a palindrome (313233332313).

The spelling of 100031202312 in words is "one hundred billion, thirty-one million, two hundred two thousand, three hundred twelve".

Divisors: 1 2 3 4 6 8 12 24 157 314 471 628 942 1256 1884 3768 26547559 53095118 79642677 106190236 159285354 212380472 318570708 637141416 4167966763 8335933526 12503900289 16671867052 25007800578 33343734104 50015601156 100031202312