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69969995 = 513993999
BaseRepresentation
bin1000010101110…
…10100001001011
311212122211210022
410022322201023
5120403014440
610535411055
71506510104
oct412724113
9155584708
1069969995
1136550547
121b523a8b
131165ac84
1494153ab
156221cb5
hex42ba84b

69969995 has 4 divisors (see below), whose sum is σ = 83964000. Its totient is φ = 55975992.

The previous prime is 69969983. The next prime is 69970001. The reversal of 69969995 is 59996996.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-69969995 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6996995 + ... + 6997004.

It is an arithmetic number, because the mean of its divisors is an integer number (20991000).

Almost surely, 269969995 is an apocalyptic number.

69969995 is a deficient number, since it is larger than the sum of its proper divisors (13994005).

69969995 is a wasteful number, since it uses less digits than its factorization.

69969995 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13994004.

The product of its digits is 10628820, while the sum is 62.

The square root of 69969995 is about 8364.8069314241. The cubic root of 69969995 is about 412.0696362484.

The spelling of 69969995 in words is "sixty-nine million, nine hundred sixty-nine thousand, nine hundred ninety-five".

Divisors: 1 5 13993999 69969995