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47124012 = 22313457661
BaseRepresentation
bin1011001111000…
…0111000101100
310021200010222210
42303300320230
544030432022
64402010420
71111355535
oct263607054
9107603883
1047124012
1124666a71
1213946a10
1399bc340
14638968c
15420ca0c
hex2cf0e2c

47124012 has 48 divisors (see below), whose sum is σ = 118852832. Its totient is φ = 14446080.

The previous prime is 47123969. The next prime is 47124013. The reversal of 47124012 is 21042174.

It is a happy number.

47124012 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×471240122 = 4441345013952288, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 47124012.

It is not an unprimeable number, because it can be changed into a prime (47124013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 70962 + ... + 71622.

Almost surely, 247124012 is an apocalyptic number.

It is an amenable number.

47124012 is an abundant number, since it is smaller than the sum of its proper divisors (71728820).

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

47124012 is a wasteful number, since it uses less digits than its factorization.

47124012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1138 (or 1136 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 21.

The square root of 47124012 is about 6864.6931468202. The cubic root of 47124012 is about 361.1997319135.

Adding to 47124012 its reverse (21042174), we get a palindrome (68166186).

The spelling of 47124012 in words is "forty-seven million, one hundred twenty-four thousand, twelve".

Divisors: 1 2 3 4 6 12 13 26 39 52 78 156 457 661 914 1322 1371 1828 1983 2644 2742 3966 5484 5941 7932 8593 11882 17186 17823 23764 25779 34372 35646 51558 71292 103116 302077 604154 906231 1208308 1812462 3624924 3927001 7854002 11781003 15708004 23562006 47124012