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10500800807 = 77611971241
BaseRepresentation
bin10011100011110010…
…11000000100100111
31000002211002221200102
421301321120010213
5133001201111212
64453552334315
7521135222420
oct116171300447
930084087612
1010500800807
1144a9479082
12205084439b
13cb4692c03
14718886647
15416d335c2
hex271e58127

10500800807 has 8 divisors (see below), whose sum is σ = 12016691232. Its totient is φ = 8988854400.

The previous prime is 10500800753. The next prime is 10500800831. The reversal of 10500800807 is 70800800501.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 10500800807 - 28 = 10500800551 is a prime.

It is a super-4 number, since 4×105008008074 (a number of 41 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 10500800807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10500800837) 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, 980294 + ... + 990947.

It is an arithmetic number, because the mean of its divisors is an integer number (1502086404).

Almost surely, 210500800807 is an apocalyptic number.

10500800807 is a deficient number, since it is larger than the sum of its proper divisors (1515890425).

10500800807 is an equidigital number, since it uses as much as digits as its factorization.

10500800807 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1972009.

The product of its (nonzero) digits is 2240, while the sum is 29.

The spelling of 10500800807 in words is "ten billion, five hundred million, eight hundred thousand, eight hundred seven".

Divisors: 1 7 761 5327 1971241 13798687 1500114401 10500800807