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69690942698 = 2132206186221
BaseRepresentation
bin100000011100111100…
…1110110010011101010
320122212212210200221212
41000321321312103222
52120211340131243
652003210433122
75015002144646
oct1007171662352
9218785720855
1069690942698
11276127a1813
121160b4327a2
1367583c8100
143531965c26
151c2d413318
hex1039e764ea

69690942698 has 12 divisors (see below), whose sum is σ = 113196235878. Its totient is φ = 32165050320.

The previous prime is 69690942679. The next prime is 69690942703. The reversal of 69690942698 is 89624909696.

It can be written as a sum of positive squares in 3 ways, for example, as 13511040169 + 56179902529 = 116237^2 + 237023^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 103092773 + ... + 103093448.

Almost surely, 269690942698 is an apocalyptic number.

69690942698 is a deficient number, since it is larger than the sum of its proper divisors (43505293180).

69690942698 is a wasteful number, since it uses less digits than its factorization.

69690942698 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206186249 (or 206186236 counting only the distinct ones).

The product of its (nonzero) digits is 90699264, while the sum is 68.

The spelling of 69690942698 in words is "sixty-nine billion, six hundred ninety million, nine hundred forty-two thousand, six hundred ninety-eight".

Divisors: 1 2 13 26 169 338 206186221 412372442 2680420873 5360841746 34845471349 69690942698