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69240886 = 21113242101
BaseRepresentation
bin1000010000010…
…00100000110110
311211021210122021
410020020200312
5120211202021
610512023354
71500352321
oct410104066
9154253567
1069240886
11360a2780
121b231b5a
1311464150
1492a57b8
15612ac41
hex4208836

69240886 has 16 divisors (see below), whose sum is σ = 122019408. Its totient is φ = 29052000.

The previous prime is 69240851. The next prime is 69240907. The reversal of 69240886 is 68804296.

It is a happy number.

It is a super-3 number, since 3×692408863 (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 120765 + ... + 121336.

It is an arithmetic number, because the mean of its divisors is an integer number (7626213).

Almost surely, 269240886 is an apocalyptic number.

69240886 is a deficient number, since it is larger than the sum of its proper divisors (52778522).

69240886 is a wasteful number, since it uses less digits than its factorization.

69240886 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 242127.

The product of its (nonzero) digits is 165888, while the sum is 43.

The square root of 69240886 is about 8321.1108633403. The cubic root of 69240886 is about 410.6333380368.

The spelling of 69240886 in words is "sixty-nine million, two hundred forty thousand, eight hundred eighty-six".

Divisors: 1 2 11 13 22 26 143 286 242101 484202 2663111 3147313 5326222 6294626 34620443 69240886