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69969994 = 21716712323
BaseRepresentation
bin1000010101110…
…10100001001010
311212122211210021
410022322201022
5120403014434
610535411054
71506510103
oct412724112
9155584707
1069969994
1136550546
121b523a8a
131165ac83
1494153aa
156221cb4
hex42ba84a

69969994 has 16 divisors (see below), whose sum is σ = 111803328. Its totient is φ = 32727232.

The previous prime is 69969983. The next prime is 69970001. The reversal of 69969994 is 49996996.

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 7 ways as a sum of consecutive naturals, for example, 484 + ... + 11839.

It is an arithmetic number, because the mean of its divisors is an integer number (6987708).

Almost surely, 269969994 is an apocalyptic number.

69969994 is a deficient number, since it is larger than the sum of its proper divisors (41833334).

69969994 is a wasteful number, since it uses less digits than its factorization.

69969994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12509.

The product of its digits is 8503056, while the sum is 61.

The square root of 69969994 is about 8364.8068716498. The cubic root of 69969994 is about 412.0696342853.

The spelling of 69969994 in words is "sixty-nine million, nine hundred sixty-nine thousand, nine hundred ninety-four".

Divisors: 1 2 17 34 167 334 2839 5678 12323 24646 209491 418982 2057941 4115882 34984997 69969994