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47990064 = 2434323251
BaseRepresentation
bin1011011100010…
…0010100110000
310100022010222210
42313010110300
544241140224
64432332120
71121623503
oct267042460
9110263883
1047990064
11250a8711
12140a4040
139c335b5
14653313a
15432e429
hex2dc4530

47990064 has 40 divisors (see below), whose sum is σ = 126862912. Its totient is φ = 15624000.

The previous prime is 47990053. The next prime is 47990093. The reversal of 47990064 is 46009974.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9562 + ... + 13689.

Almost surely, 247990064 is an apocalyptic number.

It is an amenable number.

47990064 is an abundant number, since it is smaller than the sum of its proper divisors (78872848).

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

47990064 is a wasteful number, since it uses less digits than its factorization.

47990064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23305 (or 23299 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 39.

The square root of 47990064 is about 6927.4861241290. The cubic root of 47990064 is about 363.3990405718.

The spelling of 47990064 in words is "forty-seven million, nine hundred ninety thousand, sixty-four".

Divisors: 1 2 3 4 6 8 12 16 24 43 48 86 129 172 258 344 516 688 1032 2064 23251 46502 69753 93004 139506 186008 279012 372016 558024 999793 1116048 1999586 2999379 3999172 5998758 7998344 11997516 15996688 23995032 47990064