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10142044409 = 71976255973
BaseRepresentation
bin10010111001000001…
…10101000011111001
3222011211001020102102
421130200311003321
5131232330410114
64354215113145
7506220645410
oct113440650371
928154036372
1010142044409
114334a13092
121b706727b5
13c58262213
146c2d7a477
153e55ba2de
hex25c8350f9

10142044409 has 8 divisors (see below), whose sum is σ = 12200955840. Its totient is φ = 8235644976.

The previous prime is 10142044397. The next prime is 10142044439. The reversal of 10142044409 is 90444024101.

10142044409 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 10142044409 - 28 = 10142044153 is a prime.

It is a super-2 number, since 2×101420444092 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10142044439) 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, 38127854 + ... + 38128119.

It is an arithmetic number, because the mean of its divisors is an integer number (1525119480).

Almost surely, 210142044409 is an apocalyptic number.

10142044409 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

10142044409 is a deficient number, since it is larger than the sum of its proper divisors (2058911431).

10142044409 is an equidigital number, since it uses as much as digits as its factorization.

10142044409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76255999.

The product of its (nonzero) digits is 4608, while the sum is 29.

The spelling of 10142044409 in words is "ten billion, one hundred forty-two million, forty-four thousand, four hundred nine".

Divisors: 1 7 19 133 76255973 533791811 1448863487 10142044409