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47325640 = 2351183141
BaseRepresentation
bin1011010010001…
…0000111001000
310022001101120111
42310202013020
544103410030
64410204104
71113155425
oct264420710
9108041514
1047325640
11247944aa
1213a23634
139a6004b
1463dcd4c
15424c62a
hex2d221c8

47325640 has 16 divisors (see below), whose sum is σ = 106482780. Its totient is φ = 18930240.

The previous prime is 47325589. The next prime is 47325647. The reversal of 47325640 is 4652374.

It can be written as a sum of positive squares in 2 ways, for example, as 46321636 + 1004004 = 6806^2 + 1002^2 .

It is not an unprimeable number, because it can be changed into a prime (47325647) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 591531 + ... + 591610.

Almost surely, 247325640 is an apocalyptic number.

47325640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

47325640 is an abundant number, since it is smaller than the sum of its proper divisors (59157140).

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

47325640 is a wasteful number, since it uses less digits than its factorization.

47325640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1183152 (or 1183148 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 31.

The square root of 47325640 is about 6879.3633426357. The cubic root of 47325640 is about 361.7141501739.

The spelling of 47325640 in words is "forty-seven million, three hundred twenty-five thousand, six hundred forty".

Divisors: 1 2 4 5 8 10 20 40 1183141 2366282 4732564 5915705 9465128 11831410 23662820 47325640