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79233805225 = 5219229632
BaseRepresentation
bin100100111001010110…
…0111110101110101001
321120111221101100100201
41021302230332232221
52244232323231400
6100222143232201
75503326142411
oct1116254765651
9246457340321
1079233805225
113066a465663
12134332a8661
137619489c23
143b990cd641
1520db0c306a
hex1272b3eba9

79233805225 has 27 divisors (see below), whose sum is σ = 103728135063. Its totient is φ = 60030617040.

The previous prime is 79233805199. The next prime is 79233805331. The reversal of 79233805225 is 52250833297.

The square root of 79233805225 is 281485.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 28524169881 + 50709635344 = 168891^2 + 225188^2 .

It is not a de Polignac number, because 79233805225 - 25 = 79233805193 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 26739594 + ... + 26742556.

Almost surely, 279233805225 is an apocalyptic number.

79233805225 is the 281485-th square number.

79233805225 is the 140743-rd centered octagonal number.

It is an amenable number.

79233805225 is a deficient number, since it is larger than the sum of its proper divisors (24494329838).

79233805225 is an frugal number, since it uses more digits than its factorization.

79233805225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5974 (or 2987 counting only the distinct ones).

The product of its (nonzero) digits is 907200, while the sum is 46.

The spelling of 79233805225 in words is "seventy-nine billion, two hundred thirty-three million, eight hundred five thousand, two hundred twenty-five".

Divisors: 1 5 19 25 95 361 475 1805 2963 9025 14815 56297 74075 281485 1069643 1407425 5348215 8779369 26741075 43896845 166808011 219484225 834040055 3169352209 4170200275 15846761045 79233805225