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31143414112 = 2517467312251
BaseRepresentation
bin11101000000010010…
…101100100101100000
32222101102211100122221
4131000102230211200
51002240203222422
622150155240424
72151522436456
oct350022544540
988342740587
1031143414112
1112231710a78
126051a49114
132c242365b5
1417162489d6
15c241d83c7
hex7404ac960

31143414112 has 48 divisors (see below), whose sum is σ = 64939471632. Its totient is φ = 14651392000.

The previous prime is 31143414101. The next prime is 31143414149. The reversal of 31143414112 is 21141434113.

It is a congruent number.

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, 2535987 + ... + 2548237.

It is an arithmetic number, because the mean of its divisors is an integer number (1352905659).

Almost surely, 231143414112 is an apocalyptic number.

31143414112 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

31143414112 is an abundant number, since it is smaller than the sum of its proper divisors (33796057520).

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

31143414112 is a wasteful number, since it uses less digits than its factorization.

31143414112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16951 (or 16943 counting only the distinct ones).

The product of its digits is 1152, while the sum is 25.

Adding to 31143414112 its reverse (21141434113), we get a palindrome (52284848225).

The spelling of 31143414112 in words is "thirty-one billion, one hundred forty-three million, four hundred fourteen thousand, one hundred twelve".

Divisors: 1 2 4 8 16 17 32 34 68 136 272 544 4673 9346 12251 18692 24502 37384 49004 74768 79441 98008 149536 158882 196016 208267 317764 392032 416534 635528 833068 1271056 1666136 2542112 3332272 6664544 57248923 114497846 228995692 457991384 915982768 973231691 1831965536 1946463382 3892926764 7785853528 15571707056 31143414112