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494494980 = 223571769257
BaseRepresentation
bin11101011110010…
…110010100000100
31021110110221120220
4131132112110010
52003042314410
6121022424340
715153065220
oct3536262404
91243427526
10494494980
11234147441
121197320b0
137b5a84a5
1449961780
152d62c070
hex1d796504

494494980 has 96 divisors (see below), whose sum is σ = 1675489536. Its totient is φ = 106377216.

The previous prime is 494494961. The next prime is 494495003. The reversal of 494494980 is 89494494.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 27489 + ... + 41768.

It is an arithmetic number, because the mean of its divisors is an integer number (17453016).

Almost surely, 2494494980 is an apocalyptic number.

It is an amenable number.

494494980 is an abundant number, since it is smaller than the sum of its proper divisors (1180994556).

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

494494980 is a wasteful number, since it uses less digits than its factorization.

494494980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69293 (or 69291 counting only the distinct ones).

The product of its (nonzero) digits is 1492992, while the sum is 51.

The square root of 494494980 is about 22237.2430845193. The cubic root of 494494980 is about 790.7768782470.

The spelling of 494494980 in words is "four hundred ninety-four million, four hundred ninety-four thousand, nine hundred eighty".

Divisors: 1 2 3 4 5 6 7 10 12 14 15 17 20 21 28 30 34 35 42 51 60 68 70 84 85 102 105 119 140 170 204 210 238 255 340 357 420 476 510 595 714 1020 1190 1428 1785 2380 3570 7140 69257 138514 207771 277028 346285 415542 484799 692570 831084 969598 1038855 1177369 1385140 1454397 1939196 2077710 2354738 2423995 2908794 3532107 4155420 4709476 4847990 5817588 5886845 7064214 7271985 8241583 9695980 11773690 14128428 14543970 16483166 17660535 23547380 24724749 29087940 32966332 35321070 41207915 49449498 70642140 82415830 98898996 123623745 164831660 247247490 494494980