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47660472 = 2332661951
BaseRepresentation
bin1011010111001…
…1110110111000
310022200101212200
42311303312320
544200113342
64421310200
71116051546
oct265636670
9108611780
1047660472
11249a3022
1213b65360
139b49582
146488d96
1542b694c
hex2d73db8

47660472 has 24 divisors (see below), whose sum is σ = 129080640. Its totient is φ = 15886800.

The previous prime is 47660471. The next prime is 47660489. The reversal of 47660472 is 27406674.

47660472 is a `hidden beast` number, since 47 + 6 + 604 + 7 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47660471) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 330904 + ... + 331047.

It is an arithmetic number, because the mean of its divisors is an integer number (5378360).

Almost surely, 247660472 is an apocalyptic number.

It is an amenable number.

47660472 is an abundant number, since it is smaller than the sum of its proper divisors (81420168).

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

47660472 is a wasteful number, since it uses less digits than its factorization.

47660472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 661963 (or 661956 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 36.

The square root of 47660472 is about 6903.6564225054. The cubic root of 47660472 is about 362.5651966762.

The spelling of 47660472 in words is "forty-seven million, six hundred sixty thousand, four hundred seventy-two".

Divisors: 1 2 3 4 6 8 9 12 18 24 36 72 661951 1323902 1985853 2647804 3971706 5295608 5957559 7943412 11915118 15886824 23830236 47660472