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80118320 = 2453727067
BaseRepresentation
bin1001100011010…
…00001000110000
312120202102200012
410301220020300
5131002241240
611541114052
71661665052
oct461501060
9176672605
1080118320
1141252097
12229b8928
13137a21b9
14a8d78d2
157078b65
hex4c68230

80118320 has 40 divisors (see below), whose sum is σ = 191316624. Its totient is φ = 31180032.

The previous prime is 80118319. The next prime is 80118347. The reversal of 80118320 is 2381108.

It is a tau number, because it is divible by the number of its divisors (40).

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, 10574 + ... + 16493.

Almost surely, 280118320 is an apocalyptic number.

80118320 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

80118320 is an abundant number, since it is smaller than the sum of its proper divisors (111198304).

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

80118320 is a wasteful number, since it uses less digits than its factorization.

80118320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27117 (or 27111 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 23.

The square root of 80118320 is about 8950.8837552501. The cubic root of 80118320 is about 431.0992606261.

Adding to 80118320 its reverse (2381108), we get a palindrome (82499428).

The spelling of 80118320 in words is "eighty million, one hundred eighteen thousand, three hundred twenty".

Divisors: 1 2 4 5 8 10 16 20 37 40 74 80 148 185 296 370 592 740 1480 2960 27067 54134 108268 135335 216536 270670 433072 541340 1001479 1082680 2002958 2165360 4005916 5007395 8011832 10014790 16023664 20029580 40059160 80118320