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70707070694 = 2138395334381
BaseRepresentation
bin100000111011001111…
…0000100011011100110
320202111200211100112002
41001312132010123212
52124302002230234
652252105525302
75052121120151
oct1016636043346
9222450740462
1070707070694
1127a94330817
12118537a3832
13688aa91190
1435ca8b0c98
151c8c72d27e
hex10767846e6

70707070694 has 32 divisors (see below), whose sum is σ = 115719909984. Its totient is φ = 32206083840.

The previous prime is 70707070639. The next prime is 70707070699. The reversal of 70707070694 is 49607070707.

It is a happy number.

It is a super-2 number, since 2×707070706942 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70707070699) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2039384 + ... + 2073764.

It is an arithmetic number, because the mean of its divisors is an integer number (3616247187).

Almost surely, 270707070694 is an apocalyptic number.

70707070694 is a deficient number, since it is larger than the sum of its proper divisors (45012839290).

70707070694 is a wasteful number, since it uses less digits than its factorization.

70707070694 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35432.

The product of its (nonzero) digits is 518616, while the sum is 47.

The spelling of 70707070694 in words is "seventy billion, seven hundred seven million, seventy thousand, six hundred ninety-four".

Divisors: 1 2 13 26 83 166 953 1079 1906 2158 12389 24778 34381 68762 79099 158198 446953 893906 1028287 2056574 2853623 5707246 32765093 37097099 65530186 74194198 425946209 851892418 2719502719 5439005438 35353535347 70707070694