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53191079424 = 2932719229379
BaseRepresentation
bin110001100010011011…
…110111011000000000
312002021222101210122200
4301202123313120000
51332413404020144
640234033233200
73562060500210
oct614233673000
9162258353580
1053191079424
1120615a8327a
12a385702800
135028c070c2
142808476240
1515b4acec69
hexc626f7600

53191079424 has 480 divisors, whose sum is σ = 185973216000. Its totient is φ = 14296891392.

The previous prime is 53191079413. The next prime is 53191079429. The reversal of 53191079424 is 42497019135.

53191079424 is a `hidden beast` number, since 531 + 9 + 1 + 0 + 7 + 94 + 24 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 53191079424.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53191079429) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 140345667 + ... + 140346045.

It is an arithmetic number, because the mean of its divisors is an integer number (387444200).

Almost surely, 253191079424 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 53191079424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (92986608000).

53191079424 is an abundant number, since it is smaller than the sum of its proper divisors (132782136576).

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

53191079424 is a wasteful number, since it uses less digits than its factorization.

53191079424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 658 (or 639 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 45.

The spelling of 53191079424 in words is "fifty-three billion, one hundred ninety-one million, seventy-nine thousand, four hundred twenty-four".