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116665728 = 273303817
BaseRepresentation
bin1101111010000…
…10110110000000
322010112020021220
412331002312000
5214331300403
615324315040
72614433214
oct675026600
9263466256
10116665728
115a944763
12330a2a80
131b22a39a
14116cc944
15a397953
hex6f42d80

116665728 has 32 divisors (see below), whose sum is σ = 309894360. Its totient is φ = 38888448.

The previous prime is 116665723. The next prime is 116665763. The reversal of 116665728 is 827566611.

It is a tau number, because it is divible by the number of its divisors (32).

It is a super-2 number, since 2×1166657282 = 27221784179539968, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 116665728.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (116665721) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 151525 + ... + 152292.

Almost surely, 2116665728 is an apocalyptic number.

It is an amenable number.

116665728 is an abundant number, since it is smaller than the sum of its proper divisors (193228632).

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

116665728 is an equidigital number, since it uses as much as digits as its factorization.

116665728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 303834 (or 303822 counting only the distinct ones).

The product of its digits is 120960, while the sum is 42.

The square root of 116665728 is about 10801.1910454357. The cubic root of 116665728 is about 488.6310924903.

The spelling of 116665728 in words is "one hundred sixteen million, six hundred sixty-five thousand, seven hundred twenty-eight".

Divisors: 1 2 3 4 6 8 12 16 24 32 48 64 96 128 192 384 303817 607634 911451 1215268 1822902 2430536 3645804 4861072 7291608 9722144 14583216 19444288 29166432 38888576 58332864 116665728