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48990520 = 2351224763
BaseRepresentation
bin1011101011100…
…0100100111000
310102011222100201
42322320210320
5100020144040
64510011544
71133261335
oct272704470
9112158321
1048990520
1125721337
12144a6bb4
13a1c3a97
14671398c
15447aa9a
hex2eb8938

48990520 has 16 divisors (see below), whose sum is σ = 110228760. Its totient is φ = 19596192.

The previous prime is 48990517. The next prime is 48990521. The reversal of 48990520 is 2509984.

48990520 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 48990520.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (48990521) 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 3 ways as a sum of consecutive naturals, for example, 612342 + ... + 612421.

Almost surely, 248990520 is an apocalyptic number.

48990520 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

48990520 is an abundant number, since it is smaller than the sum of its proper divisors (61238240).

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

48990520 is a wasteful number, since it uses less digits than its factorization.

48990520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1224774 (or 1224770 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 37.

The square root of 48990520 is about 6999.3228243881. The cubic root of 48990520 is about 365.9069706924.

The spelling of 48990520 in words is "forty-eight million, nine hundred ninety thousand, five hundred twenty".

Divisors: 1 2 4 5 8 10 20 40 1224763 2449526 4899052 6123815 9798104 12247630 24495260 48990520