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800907252490 = 25611312962709
BaseRepresentation
bin10111010011110011100…
…10101101001100001010
32211120021121021221102201
423221321302231030022
5101110224224034430
61411533125550414
7111602141215012
oct13517162551412
92746247257381
10800907252490
1128973229aa44
1210b27a27540a
135a6a9c12177
142aa9aa4cc42
1515c77ca28ca
hexba79cad30a

800907252490 has 16 divisors (see below), whose sum is σ = 1465266384360. Its totient is φ = 315111049920.

The previous prime is 800907252461. The next prime is 800907252493. The reversal of 800907252490 is 94252709008.

It can be written as a sum of positive squares in 4 ways, for example, as 417299204169 + 383608048321 = 645987^2 + 619361^2 .

It is a super-2 number, since 2×8009072524902 (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 800907252490.

It is not an unprimeable number, because it can be changed into a prime (800907252493) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 656480745 + ... + 656481964.

Almost surely, 2800907252490 is an apocalyptic number.

800907252490 is a deficient number, since it is larger than the sum of its proper divisors (664359131870).

800907252490 is a wasteful number, since it uses less digits than its factorization.

800907252490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1312962777.

The product of its (nonzero) digits is 362880, while the sum is 46.

The spelling of 800907252490 in words is "eight hundred billion, nine hundred seven million, two hundred fifty-two thousand, four hundred ninety".

Divisors: 1 2 5 10 61 122 305 610 1312962709 2625925418 6564813545 13129627090 80090725249 160181450498 400453626245 800907252490