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561052801248 = 25317333782081
BaseRepresentation
bin10000010101000010101…
…10100101100011100000
31222122011201211100210120
420022201112211203200
533143014004114443
61105424420400240
755351261060422
oct10124126454340
91878151740716
10561052801248
111a6a39752735
129089b546080
1340ba3a41584
141d22584a812
15e8da9e7083
hex82a15a58e0

561052801248 has 48 divisors (see below), whose sum is σ = 1481276731536. Its totient is φ = 185936568320.

The previous prime is 561052801213. The next prime is 561052801249. The reversal of 561052801248 is 842108250165.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (561052801249) 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, 16874433 + ... + 16907648.

It is an arithmetic number, because the mean of its divisors is an integer number (30859931907).

Almost surely, 2561052801248 is an apocalyptic number.

It is an amenable number.

561052801248 is an abundant number, since it is smaller than the sum of its proper divisors (920223930288).

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

561052801248 is a wasteful number, since it uses less digits than its factorization.

561052801248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33782267 (or 33782259 counting only the distinct ones).

The product of its (nonzero) digits is 153600, while the sum is 42.

The spelling of 561052801248 in words is "five hundred sixty-one billion, fifty-two million, eight hundred one thousand, two hundred forty-eight".

Divisors: 1 2 3 4 6 8 12 16 24 32 48 96 173 346 519 692 1038 1384 2076 2768 4152 5536 8304 16608 33782081 67564162 101346243 135128324 202692486 270256648 405384972 540513296 810769944 1081026592 1621539888 3243079776 5844300013 11688600026 17532900039 23377200052 35065800078 46754400104 70131600156 93508800208 140263200312 187017600416 280526400624 561052801248