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69764136 = 23313317213
BaseRepresentation
bin1000010100010…
…00010000101000
311212021101101220
410022020100220
5120324423021
610531142040
71504661661
oct412102050
9155241356
1069764136
113641a912
121b444920
13115b8370
1493a0368
1561d0cc6
hex4288428

69764136 has 64 divisors (see below), whose sum is σ = 193912320. Its totient is φ = 20770560.

The previous prime is 69764113. The next prime is 69764147. The reversal of 69764136 is 63146796.

69764136 is nontrivially palindromic in base 5.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6066 + ... + 13278.

It is an arithmetic number, because the mean of its divisors is an integer number (3029880).

Almost surely, 269764136 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 69764136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (96956160).

69764136 is an abundant number, since it is smaller than the sum of its proper divisors (124148184).

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

69764136 is a wasteful number, since it uses less digits than its factorization.

69764136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7266 (or 7262 counting only the distinct ones).

The product of its digits is 163296, while the sum is 42.

The square root of 69764136 is about 8352.4928015533. The cubic root of 69764136 is about 411.6651220436.

The spelling of 69764136 in words is "sixty-nine million, seven hundred sixty-four thousand, one hundred thirty-six".

Divisors: 1 2 3 4 6 8 12 13 24 26 31 39 52 62 78 93 104 124 156 186 248 312 372 403 744 806 1209 1612 2418 3224 4836 7213 9672 14426 21639 28852 43278 57704 86556 93769 173112 187538 223603 281307 375076 447206 562614 670809 750152 894412 1125228 1341618 1788824 2250456 2683236 2906839 5366472 5813678 8720517 11627356 17441034 23254712 34882068 69764136