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47130272 = 257210403
BaseRepresentation
bin1011001111001…
…0011010100000
310021200110120122
42303302122200
544031132042
64402055412
71111413020
oct263623240
9107613518
1047130272
1124670742
121394a568
1399c2147
14638ba80
15420e7d2
hex2cf26a0

47130272 has 24 divisors (see below), whose sum is σ = 106043616. Its totient is φ = 20198592.

The previous prime is 47130269. The next prime is 47130277. The reversal of 47130272 is 27203174.

It is not an unprimeable number, because it can be changed into a prime (47130277) 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, 104978 + ... + 105425.

It is an arithmetic number, because the mean of its divisors is an integer number (4418484).

Almost surely, 247130272 is an apocalyptic number.

It is an amenable number.

47130272 is an abundant number, since it is smaller than the sum of its proper divisors (58913344).

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

47130272 is a wasteful number, since it uses less digits than its factorization.

47130272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210420 (or 210412 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 26.

The square root of 47130272 is about 6865.1490879660. The cubic root of 47130272 is about 361.2157252476.

The spelling of 47130272 in words is "forty-seven million, one hundred thirty thousand, two hundred seventy-two".

Divisors: 1 2 4 7 8 14 16 28 32 56 112 224 210403 420806 841612 1472821 1683224 2945642 3366448 5891284 6732896 11782568 23565136 47130272