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31411103772 = 22319232312271
BaseRepresentation
bin11101010000001111…
…110110100000011100
310000002002112101211210
4131100033312200130
51003312220310042
622232520544420
72161252656006
oct352017664034
9100062471753
1031411103772
11123598271a4
126107622110
132c67830949
14173da0b376
15c3c963a9c
hex7503f681c

31411103772 has 216 divisors, whose sum is σ = 83643329280. Its totient is φ = 9148075200.

The previous prime is 31411103771. The next prime is 31411103777. The reversal of 31411103772 is 27730111413.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31411103771) by changing a digit.

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 71 ways as a sum of consecutive naturals, for example, 115907997 + ... + 115908267.

Almost surely, 231411103772 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31411103772, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41821664640).

31411103772 is an abundant number, since it is smaller than the sum of its proper divisors (52232225508).

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

31411103772 is a wasteful number, since it uses less digits than its factorization.

31411103772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 405 (or 349 counting only the distinct ones).

The product of its (nonzero) digits is 3528, while the sum is 30.

The spelling of 31411103772 in words is "thirty-one billion, four hundred eleven million, one hundred three thousand, seven hundred seventy-two".