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65168982 = 23323137383
BaseRepresentation
bin1111100010011…
…0011001010110
311112121221001000
43320212121112
5113140401412
610244444130
71420633014
oct370463126
9145557030
1065168982
113387146a
12199a9646
1310669938
1489258b4
155ac44dc
hex3e26656

65168982 has 64 divisors (see below), whose sum is σ = 152616960. Its totient is φ = 20572992.

The previous prime is 65168977. The next prime is 65168989. The reversal of 65168982 is 28986156.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65168989) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 169963 + ... + 170345.

It is an arithmetic number, because the mean of its divisors is an integer number (2384640).

Almost surely, 265168982 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 65168982, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (76308480).

65168982 is an abundant number, since it is smaller than the sum of its proper divisors (87447978).

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

65168982 is a wasteful number, since it uses less digits than its factorization.

65168982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 554 (or 548 counting only the distinct ones).

The product of its digits is 207360, while the sum is 45.

The square root of 65168982 is about 8072.7307647413. The cubic root of 65168982 is about 402.4207001421.

The spelling of 65168982 in words is "sixty-five million, one hundred sixty-eight thousand, nine hundred eighty-two".

Divisors: 1 2 3 6 9 18 23 27 46 54 69 137 138 207 274 383 411 414 621 766 822 1149 1233 1242 2298 2466 3151 3447 3699 6302 6894 7398 8809 9453 10341 17618 18906 20682 26427 28359 52471 52854 56718 79281 85077 104942 157413 158562 170154 237843 314826 472239 475686 944478 1206833 1416717 2413666 2833434 3620499 7240998 10861497 21722994 32584491 65168982