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130857835 = 526171567
BaseRepresentation
bin1111100110010…
…11101101101011
3100010020021012111
413303023231223
5231444422320
620552423151
73146162503
oct763135553
9303207174
10130857835
1167958479
12379a7ab7
1321159094
1413544a03
15b74ca5a
hex7ccbb6b

130857835 has 4 divisors (see below), whose sum is σ = 157029408. Its totient is φ = 104686264.

The previous prime is 130857827. The next prime is 130857869. The reversal of 130857835 is 538758031.

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 130857835 - 23 = 130857827 is a prime.

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 Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13085779 + ... + 13085788.

It is an arithmetic number, because the mean of its divisors is an integer number (39257352).

Almost surely, 2130857835 is an apocalyptic number.

130857835 is a deficient number, since it is larger than the sum of its proper divisors (26171573).

130857835 is an equidigital number, since it uses as much as digits as its factorization.

130857835 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26171572.

The product of its (nonzero) digits is 100800, while the sum is 40.

The square root of 130857835 is about 11439.3109495284. The cubic root of 130857835 is about 507.6915209749.

The spelling of 130857835 in words is "one hundred thirty million, eight hundred fifty-seven thousand, eight hundred thirty-five".

Divisors: 1 5 26171567 130857835