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31206063036 = 2234755329899
BaseRepresentation
bin11101000100000001…
…101011101110111100
32222112210201020211110
4131010001223232330
51002402223004121
622200314122020
72153213105421
oct350401535674
988483636743
1031206063036
1112264011045
12606aa20310
132c34200175
1417206b5d48
15c29960d76
hex74406bbbc

31206063036 has 24 divisors (see below), whose sum is σ = 74363385600. Its totient is φ = 10180701232.

The previous prime is 31206063023. The next prime is 31206063037. The reversal of 31206063036 is 63036060213.

It is a junction number, because it is equal to n+sod(n) for n = 31206062994 and 31206063012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31206063037) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27664386 + ... + 27665513.

It is an arithmetic number, because the mean of its divisors is an integer number (3098474400).

Almost surely, 231206063036 is an apocalyptic number.

It is an amenable number.

31206063036 is an abundant number, since it is smaller than the sum of its proper divisors (43157322564).

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

31206063036 is a wasteful number, since it uses less digits than its factorization.

31206063036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55329953 (or 55329951 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 30.

The spelling of 31206063036 in words is "thirty-one billion, two hundred six million, sixty-three thousand, thirty-six".

Divisors: 1 2 3 4 6 12 47 94 141 188 282 564 55329899 110659798 165989697 221319596 331979394 663958788 2600505253 5201010506 7801515759 10402021012 15603031518 31206063036