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70531214880 = 25357233159499
BaseRepresentation
bin100000110101111111…
…1001110111000100000
320202001102220221200210
41001223333032320200
52123421442334010
652222424414120
75044554302040
oct1015377167040
9222042827623
1070531214880
1127a04039735
1211804917340
13686050b699
1435b13b5720
151c7c092b20
hex106bfcee20

70531214880 has 768 divisors, whose sum is σ = 278691840000. Its totient is φ = 14640721920.

The previous prime is 70531214869. The next prime is 70531214891. The reversal of 70531214880 is 8841213507.

It is an interprime number because it is at equal distance from previous prime (70531214869) and next prime (70531214891).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 141344871 + ... + 141345369.

It is an arithmetic number, because the mean of its divisors is an integer number (362880000).

Almost surely, 270531214880 is an apocalyptic number.

70531214880 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 70531214880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (139345920000).

70531214880 is an abundant number, since it is smaller than the sum of its proper divisors (208160625120).

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

70531214880 is a wasteful number, since it uses less digits than its factorization.

70531214880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 637 (or 629 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 39.

The spelling of 70531214880 in words is "seventy billion, five hundred thirty-one million, two hundred fourteen thousand, eight hundred eighty".