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47387382 = 23710111171
BaseRepresentation
bin1011010011000…
…1001011110110
310022011112021020
42310301023312
544112344012
64411402010
71113533430
oct264611366
9108145236
1047387382
1124826929
1213a53306
139a82193
146417650
154260a8c
hex2d312f6

47387382 has 32 divisors (see below), whose sum is σ = 109396224. Its totient is φ = 13404000.

The previous prime is 47387359. The next prime is 47387393. The reversal of 47387382 is 28378374.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1344 + ... + 9827.

It is an arithmetic number, because the mean of its divisors is an integer number (3418632).

Almost surely, 247387382 is an apocalyptic number.

47387382 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

47387382 is an abundant number, since it is smaller than the sum of its proper divisors (62008842).

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

47387382 is a wasteful number, since it uses less digits than its factorization.

47387382 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11284.

The product of its digits is 225792, while the sum is 42.

The square root of 47387382 is about 6883.8493591885. The cubic root of 47387382 is about 361.8713817161.

The spelling of 47387382 in words is "forty-seven million, three hundred eighty-seven thousand, three hundred eighty-two".

Divisors: 1 2 3 6 7 14 21 42 101 202 303 606 707 1414 2121 4242 11171 22342 33513 67026 78197 156394 234591 469182 1128271 2256542 3384813 6769626 7897897 15795794 23693691 47387382