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72479049 = 3231050421
BaseRepresentation
bin1000101000111…
…11000101001001
312001101022120020
410110133011021
5122023312144
611105251053
71540030116
oct424370511
9161338506
1072479049
1137a04645
1220333a89
1312029016
1498a990d
15656a419
hex451f149

72479049 has 8 divisors (see below), whose sum is σ = 100840512. Its totient is φ = 46218480.

The previous prime is 72479047. The next prime is 72479051. The reversal of 72479049 is 94097427.

It is an interprime number because it is at equal distance from previous prime (72479047) and next prime (72479051).

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

It is not a de Polignac number, because 72479049 - 21 = 72479047 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 72479049.

It is not an unprimeable number, because it can be changed into a prime (72479047) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 525142 + ... + 525279.

It is an arithmetic number, because the mean of its divisors is an integer number (12605064).

Almost surely, 272479049 is an apocalyptic number.

It is an amenable number.

72479049 is a deficient number, since it is larger than the sum of its proper divisors (28361463).

72479049 is a wasteful number, since it uses less digits than its factorization.

72479049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1050447.

The product of its (nonzero) digits is 127008, while the sum is 42.

The square root of 72479049 is about 8513.4628089867. The cubic root of 72479049 is about 416.9373759393.

The spelling of 72479049 in words is "seventy-two million, four hundred seventy-nine thousand, forty-nine".

Divisors: 1 3 23 69 1050421 3151263 24159683 72479049