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8729872990 = 251489586291
BaseRepresentation
bin10000010000101011…
…10100101001011110
3211112101210111102021
420020111310221132
5120334321413430
64002131250354
7426222460516
oct101025645136
924471714367
108729872990
11377a870873
1218377499ba
13a91811727
145cb5ba846
1536161e07a
hex208574a5e

8729872990 has 16 divisors (see below), whose sum is σ = 15724351440. Its totient is φ = 3489598080.

The previous prime is 8729872913. The next prime is 8729873039. The reversal of 8729872990 is 992789278.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 278256 + ... + 308035.

It is an arithmetic number, because the mean of its divisors is an integer number (982771965).

Almost surely, 28729872990 is an apocalyptic number.

8729872990 is a deficient number, since it is larger than the sum of its proper divisors (6994478450).

8729872990 is a wasteful number, since it uses less digits than its factorization.

8729872990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 587787.

The product of its (nonzero) digits is 9144576, while the sum is 61.

The square root of 8729872990 is about 93433.7893376909. The cubic root of 8729872990 is about 2059.0614530939.

The spelling of 8729872990 in words is "eight billion, seven hundred twenty-nine million, eight hundred seventy-two thousand, nine hundred ninety".

Divisors: 1 2 5 10 1489 2978 7445 14890 586291 1172582 2931455 5862910 872987299 1745974598 4364936495 8729872990