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622728980874 = 232711131710120129
BaseRepresentation
bin10010000111111011000…
…10100010100110001010
32012112101001102220201200
421003331202202212022
540200322104341444
61154024443125030
762663543000250
oct11037542424612
92175331386650
10622728980874
11220109303310
12a0832813776
1346952827a10
14221d6b845d0
15112ea495969
hex90fd8a298a

622728980874 has 384 divisors, whose sum is σ = 1937226170880. Its totient is φ = 139124736000.

The previous prime is 622728980827. The next prime is 622728980903. The reversal of 622728980874 is 478089827226.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 30926842 + ... + 30946970.

It is an arithmetic number, because the mean of its divisors is an integer number (5044859820).

Almost surely, 2622728980874 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 622728980874, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (968613085440).

622728980874 is an abundant number, since it is smaller than the sum of its proper divisors (1314497190006).

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

622728980874 is a wasteful number, since it uses less digits than its factorization.

622728980874 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20286 (or 20283 counting only the distinct ones).

The product of its (nonzero) digits is 43352064, while the sum is 63.

The spelling of 622728980874 in words is "six hundred twenty-two billion, seven hundred twenty-eight million, nine hundred eighty thousand, eight hundred seventy-four".