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47255530 = 257675079
BaseRepresentation
bin1011010001000…
…0111111101010
310021220211101211
42310100333222
544044134110
64404503334
71112444140
oct264207752
9107824354
1047255530
1124746863
12139aab4a
139a3716a
1463c1590
15423698a
hex2d10fea

47255530 has 16 divisors (see below), whose sum is σ = 97211520. Its totient is φ = 16201872.

The previous prime is 47255513. The next prime is 47255531. The reversal of 47255530 is 3555274.

It is a junction number, because it is equal to n+sod(n) for n = 47255492 and 47255501.

It is not an unprimeable number, because it can be changed into a prime (47255531) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 337470 + ... + 337609.

It is an arithmetic number, because the mean of its divisors is an integer number (6075720).

Almost surely, 247255530 is an apocalyptic number.

47255530 is an abundant number, since it is smaller than the sum of its proper divisors (49955990).

47255530 is a wasteful number, since it uses less digits than its factorization.

47255530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 675093.

The product of its (nonzero) digits is 21000, while the sum is 31.

The square root of 47255530 is about 6874.2657789760. The cubic root of 47255530 is about 361.5354428716.

The spelling of 47255530 in words is "forty-seven million, two hundred fifty-five thousand, five hundred thirty".

Divisors: 1 2 5 7 10 14 35 70 675079 1350158 3375395 4725553 6750790 9451106 23627765 47255530