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47120161664 = 276172967
BaseRepresentation
bin101011111000100101…
…001001101110000000
311111121212220020002202
4223320211021232000
51233000230133124
633351404332332
73255452523422
oct537045115600
9144555806082
1047120161664
1118a90114974
1291705440a8
13459c23ab84
1423d0086812
15135bb395ae
hexaf8949b80

47120161664 has 48 divisors (see below), whose sum is σ = 94121819880. Its totient is φ = 23497571328.

The previous prime is 47120161639. The next prime is 47120161681. The reversal of 47120161664 is 46616102174.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 48727709 + ... + 48728675.

Almost surely, 247120161664 is an apocalyptic number.

It is an amenable number.

47120161664 is a deficient number, since it is larger than the sum of its proper divisors (47001658216).

47120161664 is an frugal number, since it uses more digits than its factorization.

47120161664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2215 (or 1586 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 38.

The spelling of 47120161664 in words is "forty-seven billion, one hundred twenty million, one hundred sixty-one thousand, six hundred sixty-four".

Divisors: 1 2 4 8 16 32 64 128 617 967 1234 1934 2468 3868 4936 7736 9872 15472 19744 30944 39488 61888 78976 123776 380689 596639 761378 1193278 1522756 2386556 3045512 4773112 6091024 9546224 12182048 19092448 24364096 38184896 48728192 76369792 368126263 736252526 1472505052 2945010104 5890020208 11780040416 23560080832 47120161664