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20112200972 = 2243116931401
BaseRepresentation
bin10010101110110001…
…111101010100001100
31220220122122200001022
4102232301331110030
5312142210412342
613123414133312
71311253613303
oct225661752414
956818580038
1020112200972
1185908a42a6
123a93651238
131b86a00a46
14d8b17143a
157caa309d2
hex4aec7d50c

20112200972 has 12 divisors (see below), whose sum is σ = 36014871816. Its totient is φ = 9822237600.

The previous prime is 20112200971. The next prime is 20112201013. The reversal of 20112200972 is 27900221102.

It is not an unprimeable number, because it can be changed into a prime (20112200971) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 58465529 + ... + 58465872.

It is an arithmetic number, because the mean of its divisors is an integer number (3001239318).

Almost surely, 220112200972 is an apocalyptic number.

It is an amenable number.

20112200972 is a deficient number, since it is larger than the sum of its proper divisors (15902670844).

20112200972 is a wasteful number, since it uses less digits than its factorization.

20112200972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116931448 (or 116931446 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 26.

The spelling of 20112200972 in words is "twenty billion, one hundred twelve million, two hundred thousand, nine hundred seventy-two".

Divisors: 1 2 4 43 86 172 116931401 233862802 467725604 5028050243 10056100486 20112200972