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165928084 = 22710954367
BaseRepresentation
bin10011110001111…
…01110010010100
3102120020000112121
421320331302110
5314434144314
624244225324
74053236230
oct1170756224
9376200477
10165928084
1185731253
124769b244
13284b7aca
14180735c0
15e878d24
hex9e3dc94

165928084 has 24 divisors (see below), whose sum is σ = 334906880. Its totient is φ = 70458336.

The previous prime is 165928073. The next prime is 165928093. The reversal of 165928084 is 480829561.

It is a happy number.

It is a super-2 number, since 2×1659280842 = 55064258119822112, 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 165928084.

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, 24132 + ... + 30235.

Almost surely, 2165928084 is an apocalyptic number.

165928084 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

165928084 is an abundant number, since it is smaller than the sum of its proper divisors (168978796).

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

165928084 is a wasteful number, since it uses less digits than its factorization.

165928084 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54487 (or 54485 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 43.

The square root of 165928084 is about 12881.3075423266. The cubic root of 165928084 is about 549.5070889627.

The spelling of 165928084 in words is "one hundred sixty-five million, nine hundred twenty-eight thousand, eighty-four".

Divisors: 1 2 4 7 14 28 109 218 436 763 1526 3052 54367 108734 217468 380569 761138 1522276 5926003 11852006 23704012 41482021 82964042 165928084