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79838225 = 5214472207
BaseRepresentation
bin1001100001000…
…11110000010001
312120020012110022
410300203300101
5130414310400
611531113225
71656420335
oct460436021
9176205408
1079838225
1141080705
12228a2815
131370486c
14a8637c5
157020b85
hex4c23c11

79838225 has 12 divisors (see below), whose sum is σ = 99112704. Its totient is φ = 63797520.

The previous prime is 79838219. The next prime is 79838233. The reversal of 79838225 is 52283897.

It is not a de Polignac number, because 79838225 - 210 = 79837201 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 35072 + ... + 37278.

It is an arithmetic number, because the mean of its divisors is an integer number (8259392).

Almost surely, 279838225 is an apocalyptic number.

It is an amenable number.

79838225 is a deficient number, since it is larger than the sum of its proper divisors (19274479).

79838225 is a wasteful number, since it uses less digits than its factorization.

79838225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3664 (or 3659 counting only the distinct ones).

The product of its digits is 241920, while the sum is 44.

The square root of 79838225 is about 8935.2238360323. The cubic root of 79838225 is about 430.5962972816.

The spelling of 79838225 in words is "seventy-nine million, eight hundred thirty-eight thousand, two hundred twenty-five".

Divisors: 1 5 25 1447 2207 7235 11035 36175 55175 3193529 15967645 79838225