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47245928 = 239536197
BaseRepresentation
bin1011010000111…
…0101001101000
310021220100020012
42310032221220
544043332203
64404351052
71112404142
oct264165150
9107810205
1047245928
112473a624
12139a5488
139a32992
1463bbc92
154233bd8
hex2d0ea68

47245928 has 16 divisors (see below), whose sum is σ = 88693380. Its totient is φ = 23594368.

The previous prime is 47245897. The next prime is 47245931. The reversal of 47245928 is 82954274.

It can be written as a sum of positive squares in 2 ways, for example, as 46812964 + 432964 = 6842^2 + 658^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4526 + ... + 10722.

Almost surely, 247245928 is an apocalyptic number.

It is an amenable number.

47245928 is a deficient number, since it is larger than the sum of its proper divisors (41447452).

47245928 is a wasteful number, since it uses less digits than its factorization.

47245928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7156 (or 7152 counting only the distinct ones).

The product of its digits is 161280, while the sum is 41.

The square root of 47245928 is about 6873.5673416356. The cubic root of 47245928 is about 361.5109540377.

The spelling of 47245928 in words is "forty-seven million, two hundred forty-five thousand, nine hundred twenty-eight".

Divisors: 1 2 4 8 953 1906 3812 6197 7624 12394 24788 49576 5905741 11811482 23622964 47245928