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23387454660 = 2235974018463
BaseRepresentation
bin10101110010000000…
…000011110011000100
32020100220121210110110
4111302000003303010
5340344142022120
614424414153020
71455364041003
oct256200036304
966326553413
1023387454660
119a11676929
1246484b2770
13228942a48b
1411bc148c3a
1591d3462e0
hex572003cc4

23387454660 has 48 divisors (see below), whose sum is σ = 66159991296. Its totient is φ = 6172357632.

The previous prime is 23387454617. The next prime is 23387454661. The reversal of 23387454660 is 6645478332.

It is not an unprimeable number, because it can be changed into a prime (23387454661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2003412 + ... + 2015051.

It is an arithmetic number, because the mean of its divisors is an integer number (1378333152).

Almost surely, 223387454660 is an apocalyptic number.

23387454660 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23387454660 is an abundant number, since it is smaller than the sum of its proper divisors (42772536636).

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

23387454660 is a wasteful number, since it uses less digits than its factorization.

23387454660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4018572 (or 4018570 counting only the distinct ones).

The product of its (nonzero) digits is 2903040, while the sum is 48.

The spelling of 23387454660 in words is "twenty-three billion, three hundred eighty-seven million, four hundred fifty-four thousand, six hundred sixty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 97 194 291 388 485 582 970 1164 1455 1940 2910 5820 4018463 8036926 12055389 16073852 20092315 24110778 40184630 48221556 60276945 80369260 120553890 241107780 389790911 779581822 1169372733 1559163644 1948954555 2338745466 3897909110 4677490932 5846863665 7795818220 11693727330 23387454660