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47940650768 = 243780980829
BaseRepresentation
bin101100101001011111…
…000100011100010000
311120202001210101120002
4230221133010130100
51241140301311033
634005034305132
73315004544063
oct545137043420
9146661711502
1047940650768
111937127a53a
12935b2881a8
1346a021599a
14246b0268da
1513a8bac3e8
hexb297c4710

47940650768 has 20 divisors (see below), whose sum is σ = 95395417740. Its totient is φ = 23322478464.

The previous prime is 47940650749. The next prime is 47940650773. The reversal of 47940650768 is 86705604974.

It can be written as a sum of positive squares in 2 ways, for example, as 24967792144 + 22972858624 = 158012^2 + 151568^2 .

It is a hoax number, since the sum of its digits (56) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40489823 + ... + 40491006.

It is an arithmetic number, because the mean of its divisors is an integer number (4769770887).

Almost surely, 247940650768 is an apocalyptic number.

It is an amenable number.

47940650768 is a deficient number, since it is larger than the sum of its proper divisors (47454766972).

47940650768 is a wasteful number, since it uses less digits than its factorization.

47940650768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80980874 (or 80980868 counting only the distinct ones).

The product of its (nonzero) digits is 10160640, while the sum is 56.

The spelling of 47940650768 in words is "forty-seven billion, nine hundred forty million, six hundred fifty thousand, seven hundred sixty-eight".

Divisors: 1 2 4 8 16 37 74 148 296 592 80980829 161961658 323923316 647846632 1295693264 2996290673 5992581346 11985162692 23970325384 47940650768