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47682131 = 76811733
BaseRepresentation
bin1011010111100…
…1001001010011
310022201111120212
42311321021103
544201312011
64421554335
71116201650
oct265711123
9108644525
1047682131
1124a08322
1213b759ab
139b563a3
146492c27
1542bd08b
hex2d79253

47682131 has 4 divisors (see below), whose sum is σ = 54493872. Its totient is φ = 40870392.

The previous prime is 47682121. The next prime is 47682137. The reversal of 47682131 is 13128674.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-47682131 is a prime.

It is a super-2 number, since 2×476821312 = 4547171233402322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47682137) 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, 3405860 + ... + 3405873.

It is an arithmetic number, because the mean of its divisors is an integer number (13623468).

Almost surely, 247682131 is an apocalyptic number.

47682131 is a deficient number, since it is larger than the sum of its proper divisors (6811741).

47682131 is an equidigital number, since it uses as much as digits as its factorization.

47682131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6811740.

The product of its digits is 8064, while the sum is 32.

The square root of 47682131 is about 6905.2249058231. The cubic root of 47682131 is about 362.6201101787.

The spelling of 47682131 in words is "forty-seven million, six hundred eighty-two thousand, one hundred thirty-one".

Divisors: 1 7 6811733 47682131