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620620268008 = 231319499629417
BaseRepresentation
bin10010000011111111101…
…10011100000111101000
32012022221002112012111011
421001333312130013220
540132012242034013
61153035314113304
762560356144316
oct11017766340750
92168832465434
10620620268008
1121a226a64104
12a034457b834
13466a79a9120
1422076aab0b6
15112252abc3d
hex907fd9c1e8

620620268008 has 64 divisors (see below), whose sum is σ = 1321777800000. Its totient is φ = 270820081152.

The previous prime is 620620267919. The next prime is 620620268077. The reversal of 620620268008 is 800862026026.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 671316 + ... + 1300732.

It is an arithmetic number, because the mean of its divisors is an integer number (20652778125).

Almost surely, 2620620268008 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 620620268008, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (660888900000).

620620268008 is an abundant number, since it is smaller than the sum of its proper divisors (701157531992).

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

620620268008 is a wasteful number, since it uses less digits than its factorization.

620620268008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 629954 (or 629950 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 40.

The spelling of 620620268008 in words is "six hundred twenty billion, six hundred twenty million, two hundred sixty-eight thousand, eight".

Divisors: 1 2 4 8 13 19 26 38 52 76 104 152 247 494 499 988 998 1976 1996 3992 6487 9481 12974 18962 25948 37924 51896 75848 123253 246506 493012 629417 986024 1258834 2517668 5035336 8182421 11958923 16364842 23917846 32729684 47835692 65459368 95671384 155465999 310931998 314079083 621863996 628158166 1243727992 1256316332 2512632664 4083028079 5967502577 8166056158 11935005154 16332112316 23870010308 32664224632 47740020616 77577533501 155155067002 310310134004 620620268008