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69934953 = 31119111539
BaseRepresentation
bin1000010101100…
…01111101101001
311212121001201110
410022301331221
5120400404303
610534540533
71506302664
oct412617551
9155531643
1069934953
1136527190
121b507749
131164803a
1494066db
156216703
hex42b1f69

69934953 has 16 divisors (see below), whose sum is σ = 107078400. Its totient is φ = 40153680.

The previous prime is 69934951. The next prime is 69934993. The reversal of 69934953 is 35943996.

It is a happy number.

It is not a de Polignac number, because 69934953 - 21 = 69934951 is a prime.

It is a super-2 number, since 2×699349532 = 9781795302224418, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (69934951) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55143 + ... + 56396.

It is an arithmetic number, because the mean of its divisors is an integer number (6692400).

Almost surely, 269934953 is an apocalyptic number.

It is an amenable number.

69934953 is a deficient number, since it is larger than the sum of its proper divisors (37143447).

69934953 is a wasteful number, since it uses less digits than its factorization.

69934953 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111572.

The product of its digits is 787320, while the sum is 48.

The square root of 69934953 is about 8362.7120600915. The cubic root of 69934953 is about 412.0008345884. Note that the first 3 decimals are identical.

The spelling of 69934953 in words is "sixty-nine million, nine hundred thirty-four thousand, nine hundred fifty-three".

Divisors: 1 3 11 19 33 57 209 627 111539 334617 1226929 2119241 3680787 6357723 23311651 69934953