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69891414 = 2334132
BaseRepresentation
bin1000010101001…
…11010101010110
311212111211222220
410022213111112
5120343011124
610534003210
71506032025
oct412472526
9155454886
1069891414
11364a74aa
121b4a6506
1311631288
1493d48bc
156208879
hex42a7556

69891414 has 12 divisors (see below), whose sum is σ = 139823796. Its totient is φ = 23290312.

The previous prime is 69891413. The next prime is 69891427. The reversal of 69891414 is 41419896.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (69891413) 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 5 ways as a sum of consecutive naturals, for example, 18772 + ... + 22184.

It is an arithmetic number, because the mean of its divisors is an integer number (11651983).

Almost surely, 269891414 is an apocalyptic number.

69891414 is an abundant number, since it is smaller than the sum of its proper divisors (69932382).

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

69891414 is an frugal number, since it uses more digits than its factorization.

69891414 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6831 (or 3418 counting only the distinct ones).

The product of its digits is 62208, while the sum is 42.

The square root of 69891414 is about 8360.1084921190. The cubic root of 69891414 is about 411.9153178456.

The spelling of 69891414 in words is "sixty-nine million, eight hundred ninety-one thousand, four hundred fourteen".

Divisors: 1 2 3 6 3413 6826 10239 20478 11648569 23297138 34945707 69891414