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79389053 = 139956747
BaseRepresentation
bin1001011101101…
…10000101111101
312112101101022022
410232312011331
5130310422203
611513325525
71652536652
oct456660575
9175341268
1079389053
11408a4197
12227068a5
13135a8293
14a787c29
156e82a38
hex4bb617d

79389053 has 4 divisors (see below), whose sum is σ = 79447200. Its totient is φ = 79330908.

The previous prime is 79389029. The next prime is 79389059. The reversal of 79389053 is 35098397.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 79389053 - 26 = 79388989 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 79388995 and 79389013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79389059) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26975 + ... + 29772.

It is an arithmetic number, because the mean of its divisors is an integer number (19861800).

Almost surely, 279389053 is an apocalyptic number.

It is an amenable number.

79389053 is a deficient number, since it is larger than the sum of its proper divisors (58147).

79389053 is a wasteful number, since it uses less digits than its factorization.

79389053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58146.

The product of its (nonzero) digits is 204120, while the sum is 44.

The square root of 79389053 is about 8910.0534790763. The cubic root of 79389053 is about 429.7872627148.

The spelling of 79389053 in words is "seventy-nine million, three hundred eighty-nine thousand, fifty-three".

Divisors: 1 1399 56747 79389053