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53923253888 = 27760182203
BaseRepresentation
bin110010001110000100…
…111000111010000000
312011012000010010012102
4302032010320322000
51340413323111023
640434430245532
73616161044510
oct621604707200
9164160103172
1053923253888
11209612a8839
12a54a9568a8
13511480012a
1428777c7840
15160900a628
hexc8e138e80

53923253888 has 32 divisors (see below), whose sum is σ = 122771696160. Its totient is φ = 23109965568.

The previous prime is 53923253861. The next prime is 53923253899. The reversal of 53923253888 is 88835232935.

It is a tau number, because it is divible by the number of its divisors (32).

It is a Harshad number since it is a multiple of its sum of digits (56).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30090206 + ... + 30091997.

It is an arithmetic number, because the mean of its divisors is an integer number (3836615505).

Almost surely, 253923253888 is an apocalyptic number.

It is an amenable number.

53923253888 is an abundant number, since it is smaller than the sum of its proper divisors (68848442272).

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

53923253888 is an equidigital number, since it uses as much as digits as its factorization.

53923253888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60182224 (or 60182212 counting only the distinct ones).

The product of its digits is 12441600, while the sum is 56.

The spelling of 53923253888 in words is "fifty-three billion, nine hundred twenty-three million, two hundred fifty-three thousand, eight hundred eighty-eight".

Divisors: 1 2 4 7 8 14 16 28 32 56 64 112 128 224 448 896 60182203 120364406 240728812 421275421 481457624 842550842 962915248 1685101684 1925830496 3370203368 3851660992 6740406736 7703321984 13480813472 26961626944 53923253888