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79124064100 = 225223212232
BaseRepresentation
bin100100110110000101…
…0010110011101100100
321120020021212220211121
41021230022112131210
52244021230022400
6100203223143324
75500524306424
oct1115412263544
9246207786747
1079124064100
1130613520514
12134025a4b44
1375cc815653
143b886c4484
1520d164721a
hex126c296764

79124064100 has 81 divisors (see below), whose sum is σ = 179635856953. Its totient is φ = 30248801440.

The previous prime is 79124063969. The next prime is 79124064101. The reversal of 79124064100 is 146042197.

The square root of 79124064100 is 281290.

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., 28484663076 + 50639401024 = 168774^2 + 225032^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (79124064101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 64696089 + ... + 64697311.

Almost surely, 279124064100 is an apocalyptic number.

79124064100 is the 281290-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 79124064100

79124064100 is an abundant number, since it is smaller than the sum of its proper divisors (100511792853).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

79124064100 is a wasteful number, since it uses less digits than its factorization.

79124064100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2506 (or 1253 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 34.

The spelling of 79124064100 in words is "seventy-nine billion, one hundred twenty-four million, sixty-four thousand, one hundred".

Divisors: 1 2 4 5 10 20 23 25 46 50 92 100 115 230 460 529 575 1058 1150 1223 2116 2300 2446 2645 4892 5290 6115 10580 12230 13225 24460 26450 28129 30575 52900 56258 61150 112516 122300 140645 281290 562580 646967 703225 1293934 1406450 1495729 2587868 2812900 2991458 3234835 5982916 6469670 7478645 12939340 14957290 16174175 29914580 32348350 34401767 37393225 64696700 68803534 74786450 137607068 149572900 172008835 344017670 688035340 791240641 860044175 1582481282 1720088350 3164962564 3440176700 3956203205 7912406410 15824812820 19781016025 39562032050 79124064100