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10158106391 = 71143071921
BaseRepresentation
bin10010111010111100…
…00110011100010111
3222012221021021022122
421131132012130113
5131300433401031
64355551250155
7506504323346
oct113536063427
928187237278
1010158106391
114342a93754
121b75b1995b
13c5b697054
146c515bb5d
153e6bde47b
hex25d786717

10158106391 has 4 divisors (see below), whose sum is σ = 10301178384. Its totient is φ = 10015034400.

The previous prime is 10158106369. The next prime is 10158106397. The reversal of 10158106391 is 19360185101.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 10158106391 - 26 = 10158106327 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10158106397) 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 3 ways as a sum of consecutive naturals, for example, 71535890 + ... + 71536031.

It is an arithmetic number, because the mean of its divisors is an integer number (2575294596).

Almost surely, 210158106391 is an apocalyptic number.

10158106391 is a deficient number, since it is larger than the sum of its proper divisors (143071993).

10158106391 is an equidigital number, since it uses as much as digits as its factorization.

10158106391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143071992.

The product of its (nonzero) digits is 6480, while the sum is 35.

It can be divided in two parts, 1015810 and 6391, that added together give a palindrome (1022201).

The spelling of 10158106391 in words is "ten billion, one hundred fifty-eight million, one hundred six thousand, three hundred ninety-one".

Divisors: 1 71 143071921 10158106391