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47906136 = 23321739139
BaseRepresentation
bin1011011010111…
…1110101011000
310100010212212100
42312233311120
544230444021
64430443400
71121124015
oct266576530
9110125770
1047906136
1125050653
1214063560
139c04335
14651070c
154314626
hex2dafd58

47906136 has 48 divisors (see below), whose sum is σ = 137381400. Its totient is φ = 15028992.

The previous prime is 47906123. The next prime is 47906149. The reversal of 47906136 is 63160974.

It is an interprime number because it is at equal distance from previous prime (47906123) and next prime (47906149).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 47906136.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18346 + ... + 20793.

Almost surely, 247906136 is an apocalyptic number.

It is an amenable number.

47906136 is an abundant number, since it is smaller than the sum of its proper divisors (89475264).

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

47906136 is a wasteful number, since it uses less digits than its factorization.

47906136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39168 (or 39161 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 36.

The square root of 47906136 is about 6921.4258646611. The cubic root of 47906136 is about 363.1870720298.

The spelling of 47906136 in words is "forty-seven million, nine hundred six thousand, one hundred thirty-six".

Divisors: 1 2 3 4 6 8 9 12 17 18 24 34 36 51 68 72 102 136 153 204 306 408 612 1224 39139 78278 117417 156556 234834 313112 352251 469668 665363 704502 939336 1330726 1409004 1996089 2661452 2818008 3992178 5322904 5988267 7984356 11976534 15968712 23953068 47906136