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48977691 = 373536607
BaseRepresentation
bin1011101011010…
…1011100011011
310102011022202120
42322311130123
5100014241231
64505432323
71133206050
oct272653433
9112138676
1048977691
1125712734
121449b6a3
13a1baca9
14670d027
154476d96
hex2eb571b

48977691 has 16 divisors (see below), whose sum is σ = 74855424. Its totient is φ = 27903744.

The previous prime is 48977689. The next prime is 48977711. The reversal of 48977691 is 19677984.

It is not a de Polignac number, because 48977691 - 21 = 48977689 is a prime.

It is not an unprimeable number, because it can be changed into a prime (48977891) 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, 4110 + ... + 10716.

It is an arithmetic number, because the mean of its divisors is an integer number (4678464).

Almost surely, 248977691 is an apocalyptic number.

48977691 is a deficient number, since it is larger than the sum of its proper divisors (25877733).

48977691 is a wasteful number, since it uses less digits than its factorization.

48977691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6970.

The product of its digits is 762048, while the sum is 51.

The square root of 48977691 is about 6998.4063185843. The cubic root of 48977691 is about 365.8750282517.

The spelling of 48977691 in words is "forty-eight million, nine hundred seventy-seven thousand, six hundred ninety-one".

Divisors: 1 3 7 21 353 1059 2471 6607 7413 19821 46249 138747 2332271 6996813 16325897 48977691