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31474001756 = 22172691720643
BaseRepresentation
bin11101010011111111…
…110010011101011100
310000020110212221122202
4131103333302131130
51003424321024011
622243045031032
72162645413031
oct352377623534
9100213787582
1031474001756
11123912873aa
1261246b5478
132c778839a2
141748101388
15c4323a23b
hex753ff275c

31474001756 has 24 divisors (see below), whose sum is σ = 58536308880. Its totient is φ = 14756225792.

The previous prime is 31474001731. The next prime is 31474001759. The reversal of 31474001756 is 65710047413.

It is a super-2 number, since 2×314740017562 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31474001759) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 842030 + ... + 878613.

It is an arithmetic number, because the mean of its divisors is an integer number (2439012870).

Almost surely, 231474001756 is an apocalyptic number.

It is an amenable number.

31474001756 is a deficient number, since it is larger than the sum of its proper divisors (27062307124).

31474001756 is a wasteful number, since it uses less digits than its factorization.

31474001756 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1720933 (or 1720931 counting only the distinct ones).

The product of its (nonzero) digits is 70560, while the sum is 38.

The spelling of 31474001756 in words is "thirty-one billion, four hundred seventy-four million, one thousand, seven hundred fifty-six".

Divisors: 1 2 4 17 34 68 269 538 1076 4573 9146 18292 1720643 3441286 6882572 29250931 58501862 117003724 462852967 925705934 1851411868 7868500439 15737000878 31474001756