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10180568542 = 25090284271
BaseRepresentation
bin10010111101100111…
…10010010111011110
3222021111112110121011
421132303302113132
5131322211143132
64402112525434
7510166255564
oct113663622736
928244473534
1010180568542
114354735911
121b8155087a
13c63230071
146c8127a34
153e8b79b47
hex25ecf25de

10180568542 has 4 divisors (see below), whose sum is σ = 15270852816. Its totient is φ = 5090284270.

The previous prime is 10180568521. The next prime is 10180568549. The reversal of 10180568542 is 24586508101.

It is a happy number.

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

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 10180568495 and 10180568504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10180568549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2545142134 + ... + 2545142137.

It is an arithmetic number, because the mean of its divisors is an integer number (3817713204).

Almost surely, 210180568542 is an apocalyptic number.

10180568542 is a deficient number, since it is larger than the sum of its proper divisors (5090284274).

10180568542 is an equidigital number, since it uses as much as digits as its factorization.

10180568542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5090284273.

The product of its (nonzero) digits is 76800, while the sum is 40.

The spelling of 10180568542 in words is "ten billion, one hundred eighty million, five hundred sixty-eight thousand, five hundred forty-two".

Divisors: 1 2 5090284271 10180568542