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69968970 = 2325777433
BaseRepresentation
bin1000010101110…
…10010001001010
311212122210101100
410022322101022
5120403001340
610535402230
71506504111
oct412722112
9155583340
1069968970
113654a7a5
121b523376
131165a676
149414c78
156221830
hex42ba44a

69968970 has 24 divisors (see below), whose sum is σ = 181919556. Its totient is φ = 18658368.

The previous prime is 69968933. The next prime is 69969019. The reversal of 69968970 is 7986996.

It can be written as a sum of positive squares in 2 ways, for example, as 69705801 + 263169 = 8349^2 + 513^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 388627 + ... + 388806.

Almost surely, 269968970 is an apocalyptic number.

69968970 is an abundant number, since it is smaller than the sum of its proper divisors (111950586).

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

69968970 is a wasteful number, since it uses less digits than its factorization.

69968970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 777446 (or 777443 counting only the distinct ones).

The product of its (nonzero) digits is 1469664, while the sum is 54.

The square root of 69968970 is about 8364.7456626009. The cubic root of 69968970 is about 412.0676240838.

The spelling of 69968970 in words is "sixty-nine million, nine hundred sixty-eight thousand, nine hundred seventy".

Divisors: 1 2 3 5 6 9 10 15 18 30 45 90 777433 1554866 2332299 3887165 4664598 6996897 7774330 11661495 13993794 23322990 34984485 69968970