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53269990144 = 2872172310861
BaseRepresentation
bin110001100111001000…
…111000101100000000
312002111110212212210221
4301213020320230000
51333044104141034
640245532432424
73564036305500
oct614710705400
9162443785727
1053269990144
1120656580048
12a3a8018714
13503c375737
142814b37a00
1515bb9babb4
hexc67238b00

53269990144 has 216 divisors, whose sum is σ = 136675068768. Its totient is φ = 20550942720.

The previous prime is 53269990141. The next prime is 53269990181. The reversal of 53269990144 is 44109996235.

It is a junction number, because it is equal to n+sod(n) for n = 53269990091 and 53269990100.

It is not an unprimeable number, because it can be changed into a prime (53269990141) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4899274 + ... + 4910134.

It is an arithmetic number, because the mean of its divisors is an integer number (632754948).

Almost surely, 253269990144 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53269990144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68337534384).

53269990144 is an abundant number, since it is smaller than the sum of its proper divisors (83405078624).

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

53269990144 is a wasteful number, since it uses less digits than its factorization.

53269990144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10931 (or 10910 counting only the distinct ones).

The product of its (nonzero) digits is 2099520, while the sum is 52.

The spelling of 53269990144 in words is "fifty-three billion, two hundred sixty-nine million, nine hundred ninety thousand, one hundred forty-four".