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48979945 = 571399427
BaseRepresentation
bin1011101011010…
…1111111101001
310102011102212001
42322311333221
5100014324240
64505451001
71133215450
oct272657751
9112142761
1048979945
11257143a3
12144a0a61
13a1bc021
14670db97
15447789a
hex2eb5fe9

48979945 has 8 divisors (see below), whose sum is σ = 67172544. Its totient is φ = 33586224.

The previous prime is 48979939. The next prime is 48979961. The reversal of 48979945 is 54997984.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 48979945 - 27 = 48979817 is a prime.

It is a Duffinian number.

It is a plaindrome in base 15.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 699679 + ... + 699748.

It is an arithmetic number, because the mean of its divisors is an integer number (8396568).

Almost surely, 248979945 is an apocalyptic number.

It is an amenable number.

48979945 is a deficient number, since it is larger than the sum of its proper divisors (18192599).

48979945 is a wasteful number, since it uses less digits than its factorization.

48979945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1399439.

The product of its digits is 3265920, while the sum is 55.

The square root of 48979945 is about 6998.5673533946. The cubic root of 48979945 is about 365.8806408047.

The spelling of 48979945 in words is "forty-eight million, nine hundred seventy-nine thousand, nine hundred forty-five".

Divisors: 1 5 7 35 1399427 6997135 9795989 48979945