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69934769 = 971993623
BaseRepresentation
bin1000010101100…
…01111010110001
311212121001110122
410022301322301
5120400403034
610534540025
71506302312
oct412617261
9155531418
1069934769
1136527033
121b507615
1311647c28
149406609
15621662e
hex42b1eb1

69934769 has 8 divisors (see below), whose sum is σ = 71030400. Its totient is φ = 68846976.

The previous prime is 69934759. The next prime is 69934771. The reversal of 69934769 is 96743996.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-69934769 is a prime.

It is a super-2 number, since 2×699347692 = 9781743830166722, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 69934769.

It is not an unprimeable number, because it can be changed into a prime (69934759) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17492 + ... + 21114.

It is an arithmetic number, because the mean of its divisors is an integer number (8878800).

Almost surely, 269934769 is an apocalyptic number.

It is an amenable number.

69934769 is a deficient number, since it is larger than the sum of its proper divisors (1095631).

69934769 is a wasteful number, since it uses less digits than its factorization.

69934769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3919.

The product of its digits is 2204496, while the sum is 53.

The square root of 69934769 is about 8362.7010588685. The cubic root of 69934769 is about 412.0004732612. Note that the first 3 decimals are identical.

The spelling of 69934769 in words is "sixty-nine million, nine hundred thirty-four thousand, seven hundred sixty-nine".

Divisors: 1 97 199 3623 19303 351431 720977 69934769