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47972376 = 23323121493
BaseRepresentation
bin1011011100000…
…0000000011000
310100021020201200
42313000000120
544240104001
64432114200
71121521104
oct267000030
9110236650
1047972376
11250963a1
1214095960
139c2852a
14652a904
154329086
hex2dc0018

47972376 has 48 divisors (see below), whose sum is σ = 134122560. Its totient is φ = 15474240.

The previous prime is 47972371. The next prime is 47972389. The reversal of 47972376 is 67327974.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47972371) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8515 + ... + 12978.

It is an arithmetic number, because the mean of its divisors is an integer number (2794220).

Almost surely, 247972376 is an apocalyptic number.

It is an amenable number.

47972376 is an abundant number, since it is smaller than the sum of its proper divisors (86150184).

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

47972376 is a wasteful number, since it uses less digits than its factorization.

47972376 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21536 (or 21529 counting only the distinct ones).

The product of its digits is 444528, while the sum is 45.

The square root of 47972376 is about 6926.2093528856. The cubic root of 47972376 is about 363.3543883281.

The spelling of 47972376 in words is "forty-seven million, nine hundred seventy-two thousand, three hundred seventy-six".

Divisors: 1 2 3 4 6 8 9 12 18 24 31 36 62 72 93 124 186 248 279 372 558 744 1116 2232 21493 42986 64479 85972 128958 171944 193437 257916 386874 515832 666283 773748 1332566 1547496 1998849 2665132 3997698 5330264 5996547 7995396 11993094 15990792 23986188 47972376