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53498153808 = 243311176071091
BaseRepresentation
bin110001110100101111…
…010000101101010000
312010002101012210112000
4301310233100231100
51334031011410213
640324323034000
73602506542621
oct616457205520
9163071183460
1053498153808
1120763349860
12a45050b900
135077710c18
14283716ba48
1515d1a39c73
hexc74bd0b50

53498153808 has 320 divisors, whose sum is σ = 177828618240. Its totient is φ = 15218841600.

The previous prime is 53498153803. The next prime is 53498153873. The reversal of 53498153808 is 80835189435.

53498153808 is a `hidden beast` number, since 534 + 98 + 15 + 3 + 8 + 0 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53498153803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 49035343 + ... + 49036433.

It is an arithmetic number, because the mean of its divisors is an integer number (555714432).

Almost surely, 253498153808 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 53498153808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (88914309120).

53498153808 is an abundant number, since it is smaller than the sum of its proper divisors (124330464432).

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

53498153808 is a wasteful number, since it uses less digits than its factorization.

53498153808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1743 (or 1731 counting only the distinct ones).

The product of its (nonzero) digits is 4147200, while the sum is 54.

The spelling of 53498153808 in words is "fifty-three billion, four hundred ninety-eight million, one hundred fifty-three thousand, eight hundred eight".