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10142874721 = 76959208217
BaseRepresentation
bin10010111001000111…
…11111110001100001
3222011212121102101201
421130203333301201
5131233033442341
64354245001201
7506231004220
oct113443776141
928155542351
1010142874721
11433542a9a1
121b709b3201
13c58493125
146c3114cb7
153e56d1331
hex25c8ffc61

10142874721 has 8 divisors (see below), whose sum is σ = 11593578240. Its totient is φ = 8692601568.

The previous prime is 10142874661. The next prime is 10142874727. The reversal of 10142874721 is 12747824101.

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

It is not a de Polignac number, because 10142874721 - 225 = 10109320289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10142874727) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55396 + ... + 152821.

It is an arithmetic number, because the mean of its divisors is an integer number (1449197280).

Almost surely, 210142874721 is an apocalyptic number.

It is an amenable number.

10142874721 is a deficient number, since it is larger than the sum of its proper divisors (1450703519).

10142874721 is an equidigital number, since it uses as much as digits as its factorization.

10142874721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215183.

The product of its (nonzero) digits is 25088, while the sum is 37.

The spelling of 10142874721 in words is "ten billion, one hundred forty-two million, eight hundred seventy-four thousand, seven hundred twenty-one".

Divisors: 1 7 6959 48713 208217 1457519 1448982103 10142874721