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79629502970 = 25172923896761
BaseRepresentation
bin100101000101001001…
…0011100100111111010
321121112111221212121202
41022022102130213322
52301040123043340
6100325320334202
75516202415223
oct1121222344772
9247474855552
1079629502970
1130852862196
1213523914362
1376804531c4
143bd589424a
152110bd6c15
hex128a49c9fa

79629502970 has 64 divisors (see below), whose sum is σ = 157086669600. Its totient is φ = 28928040960.

The previous prime is 79629502943. The next prime is 79629502993. The reversal of 79629502970 is 7920592697.

It is a Cunningham number, because it is equal to 2821872+1.

It can be written as a sum of positive squares in 16 ways, for example, as 18100204369 + 61529298601 = 134537^2 + 248051^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11774390 + ... + 11781150.

Almost surely, 279629502970 is an apocalyptic number.

79629502970 is a deficient number, since it is larger than the sum of its proper divisors (77457166630).

79629502970 is a wasteful number, since it uses less digits than its factorization.

79629502970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9203.

The product of its (nonzero) digits is 4286520, while the sum is 56.

The spelling of 79629502970 in words is "seventy-nine billion, six hundred twenty-nine million, five hundred two thousand, nine hundred seventy".

Divisors: 1 2 5 10 17 29 34 58 85 145 170 290 493 986 2389 2465 4778 4930 6761 11945 13522 23890 33805 40613 67610 69281 81226 114937 138562 196069 203065 229874 346405 392138 406130 574685 692810 980345 1149370 1177777 1960690 2355554 3333173 5888885 6666346 11777770 16152029 16665865 32304058 33331730 80760145 161520290 274584493 468408841 549168986 936817682 1372922465 2342044205 2745844930 4684088410 7962950297 15925900594 39814751485 79629502970