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47252131 = 413972903
BaseRepresentation
bin1011010001000…
…0001010100011
310021220122201221
42310100022203
544044032011
64404435511
71112431213
oct264201243
9107818657
1047252131
1124744253
12139a8b97
139a35754
1463c0243
154235971
hex2d102a3

47252131 has 8 divisors (see below), whose sum is σ = 48543264. Its totient is φ = 45967680.

The previous prime is 47252123. The next prime is 47252137. The reversal of 47252131 is 13125274.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 47252131 - 23 = 47252123 is a prime.

It is a super-2 number, since 2×472521312 = 4465527768082322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 47252096 and 47252105.

It is not an unprimeable number, because it can be changed into a prime (47252137) 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, 14826 + ... + 17728.

It is an arithmetic number, because the mean of its divisors is an integer number (6067908).

Almost surely, 247252131 is an apocalyptic number.

47252131 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

47252131 is a deficient number, since it is larger than the sum of its proper divisors (1291133).

47252131 is a wasteful number, since it uses less digits than its factorization.

47252131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3341.

The product of its digits is 1680, while the sum is 25.

The square root of 47252131 is about 6874.0185481274. The cubic root of 47252131 is about 361.5267744791.

The spelling of 47252131 in words is "forty-seven million, two hundred fifty-two thousand, one hundred thirty-one".

Divisors: 1 41 397 2903 16277 119023 1152491 47252131