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1152168380 = 225115237129
BaseRepresentation
bin100010010101100…
…1011000110111100
32222022000012212222
41010223023012330
54324423342010
6310154544512
740360161326
oct10453130674
92868005788
101152168380
11541407180
12281a38138
1315491804c
14ad03c616
156b23d355
hex44acb1bc

1152168380 has 24 divisors (see below), whose sum is σ = 2639513520. Its totient is φ = 418970240.

The previous prime is 1152168373. The next prime is 1152168443. The reversal of 1152168380 is 838612511.

It is a self number, because there is not a number n which added to its sum of digits gives 1152168380.

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, 2618345 + ... + 2618784.

It is an arithmetic number, because the mean of its divisors is an integer number (109979730).

Almost surely, 21152168380 is an apocalyptic number.

1152168380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1152168380 is an abundant number, since it is smaller than the sum of its proper divisors (1487345140).

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

1152168380 is a wasteful number, since it uses less digits than its factorization.

1152168380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5237149 (or 5237147 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 35.

The square root of 1152168380 is about 33943.6058779853. The cubic root of 1152168380 is about 1048.3476293199.

The spelling of 1152168380 in words is "one billion, one hundred fifty-two million, one hundred sixty-eight thousand, three hundred eighty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 220 5237129 10474258 20948516 26185645 52371290 57608419 104742580 115216838 230433676 288042095 576084190 1152168380