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5215972320 = 253451383373
BaseRepresentation
bin1001101101110010…
…10110101111100000
3111110111202211220000
410312321112233200
541140242103240
62221324220000
7243154014246
oct46671265740
914414684800
105215972320
11223730a229
12101699a600
13651818c70
14376a40796
15207db8430
hex136e56be0

5215972320 has 480 divisors, whose sum is σ = 20116670112. Its totient is φ = 1265061888.

The previous prime is 5215972319. The next prime is 5215972381. The reversal of 5215972320 is 232795125.

5215972320 is a `hidden beast` number, since 5 + 21 + 597 + 23 + 20 = 666.

It is a tau number, because it is divible by the number of its divisors (480).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 13983654 + ... + 13984026.

Almost surely, 25215972320 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 5215972320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10058335056).

5215972320 is an abundant number, since it is smaller than the sum of its proper divisors (14900697792).

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

5215972320 is a wasteful number, since it uses less digits than its factorization.

5215972320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 496 (or 479 counting only the distinct ones).

The product of its (nonzero) digits is 37800, while the sum is 36.

The square root of 5215972320 is about 72221.6887091406. The cubic root of 5215972320 is about 1734.2502243033.

The spelling of 5215972320 in words is "five billion, two hundred fifteen million, nine hundred seventy-two thousand, three hundred twenty".