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65868796 = 22741181317
BaseRepresentation
bin1111101101000…
…1001111111100
311120221111000001
43323101033330
5113330300141
610311444044
71426606210
oct373211774
9146844001
1065868796
11341aa224
121a086624
1310853326
148a68940
155bb1a31
hex3ed13fc

65868796 has 48 divisors (see below), whose sum is σ = 136124352. Its totient is φ = 27302400.

The previous prime is 65868791. The next prime is 65868823. The reversal of 65868796 is 69786856.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65868791) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 207630 + ... + 207946.

It is an arithmetic number, because the mean of its divisors is an integer number (2835924).

Almost surely, 265868796 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 65868796, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68062176).

65868796 is an abundant number, since it is smaller than the sum of its proper divisors (70255556).

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

65868796 is a wasteful number, since it uses less digits than its factorization.

65868796 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 550 (or 548 counting only the distinct ones).

The product of its digits is 4354560, while the sum is 55.

The square root of 65868796 is about 8115.9593394743. The cubic root of 65868796 is about 403.8560330737.

The spelling of 65868796 in words is "sixty-five million, eight hundred sixty-eight thousand, seven hundred ninety-six".

Divisors: 1 2 4 7 14 28 41 82 164 181 287 317 362 574 634 724 1148 1267 1268 2219 2534 4438 5068 7421 8876 12997 14842 25994 29684 51947 51988 57377 90979 103894 114754 181958 207788 229508 363916 401639 803278 1606556 2352457 4704914 9409828 16467199 32934398 65868796