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1383680160 = 25325960889
BaseRepresentation
bin101001001111001…
…0100100010100000
310120102122020100100
41102132110202200
510313210231120
6345145022400
746201041642
oct12236244240
93512566310
101383680160
11650062425
12327484a00
13190886475
14d1aa4892
158171e490
hex527948a0

1383680160 has 72 divisors (see below), whose sum is σ = 4721813460. Its totient is φ = 368980992.

The previous prime is 1383680131. The next prime is 1383680171. The reversal of 1383680160 is 610863831.

1383680160 is a `hidden beast` number, since 138 + 368 + 0 + 160 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1277919504 + 105760656 = 35748^2 + 10284^2 .

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 479005 + ... + 481884.

Almost surely, 21383680160 is an apocalyptic number.

1383680160 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1383680160 is an abundant number, since it is smaller than the sum of its proper divisors (3338133300).

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

1383680160 is a wasteful number, since it uses less digits than its factorization.

1383680160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 960910 (or 960899 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 1383680160 is about 37197.8515508625. The cubic root of 1383680160 is about 1114.3250783502.

The spelling of 1383680160 in words is "one billion, three hundred eighty-three million, six hundred eighty thousand, one hundred sixty".

Divisors: 1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 30 32 36 40 45 48 60 72 80 90 96 120 144 160 180 240 288 360 480 720 1440 960889 1921778 2882667 3843556 4804445 5765334 7687112 8648001 9608890 11530668 14413335 15374224 17296002 19217780 23061336 28826670 30748448 34592004 38435560 43240005 46122672 57653340 69184008 76871120 86480010 92245344 115306680 138368016 153742240 172960020 230613360 276736032 345920040 461226720 691840080 1383680160