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48977487 = 3313139537
BaseRepresentation
bin1011101011010…
…1011001001111
310102011022111000
42322311121033
5100014234422
64505431343
71133205336
oct272653117
9112138430
1048977487
1125712569
121449b553
13a1bab80
14670cd1d
154476cac
hex2eb564f

48977487 has 16 divisors (see below), whose sum is σ = 78141280. Its totient is φ = 30139776.

The previous prime is 48977483. The next prime is 48977521. The reversal of 48977487 is 78477984.

It is not a de Polignac number, because 48977487 - 22 = 48977483 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (48977483) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 69418 + ... + 70119.

It is an arithmetic number, because the mean of its divisors is an integer number (4883830).

Almost surely, 248977487 is an apocalyptic number.

48977487 is a deficient number, since it is larger than the sum of its proper divisors (29163793).

48977487 is a wasteful number, since it uses less digits than its factorization.

48977487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139559 (or 139553 counting only the distinct ones).

The product of its digits is 3161088, while the sum is 54.

The square root of 48977487 is about 6998.3917438223. The cubic root of 48977487 is about 365.8745202748.

The spelling of 48977487 in words is "forty-eight million, nine hundred seventy-seven thousand, four hundred eighty-seven".

Divisors: 1 3 9 13 27 39 117 351 139537 418611 1255833 1813981 3767499 5441943 16325829 48977487