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48975813 = 337922961
BaseRepresentation
bin1011101011010…
…0111111000101
310102011020012000
42322310333011
5100014211223
64505415513
71133200425
oct272647705
9112136160
1048975813
1125711287
121449a599
13a1ba193
14670c485
154476543
hex2eb4fc5

48975813 has 16 divisors (see below), whose sum is σ = 73478400. Its totient is φ = 32235840.

The previous prime is 48975811. The next prime is 48975821. The reversal of 48975813 is 31857984.

It is not a de Polignac number, because 48975813 - 21 = 48975811 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (48975811) 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, 9348 + ... + 13613.

It is an arithmetic number, because the mean of its divisors is an integer number (4592400).

Almost surely, 248975813 is an apocalyptic number.

It is an amenable number.

48975813 is a deficient number, since it is larger than the sum of its proper divisors (24502587).

48975813 is a wasteful number, since it uses less digits than its factorization.

48975813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23049 (or 23043 counting only the distinct ones).

The product of its digits is 241920, while the sum is 45.

The square root of 48975813 is about 6998.2721438938. The cubic root of 48975813 is about 365.8703518227.

The spelling of 48975813 in words is "forty-eight million, nine hundred seventy-five thousand, eight hundred thirteen".

Divisors: 1 3 9 27 79 237 711 2133 22961 68883 206649 619947 1813919 5441757 16325271 48975813