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130202801 = 196852779
BaseRepresentation
bin1111100001010…
…11110010110001
3100001222222122222
413300223302301
5231312442201
620530410425
73140464001
oct760536261
9301888588
10130202801
1167550323
1237730a15
1320c89ba1
1413414001
15b66d91b
hex7c2bcb1

130202801 has 4 divisors (see below), whose sum is σ = 137055600. Its totient is φ = 123350004.

The previous prime is 130202791. The next prime is 130202803. The reversal of 130202801 is 108202031.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 130202801 - 210 = 130201777 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 130202801.

It is not an unprimeable number, because it can be changed into a prime (130202803) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3426371 + ... + 3426408.

It is an arithmetic number, because the mean of its divisors is an integer number (34263900).

Almost surely, 2130202801 is an apocalyptic number.

It is an amenable number.

130202801 is a deficient number, since it is larger than the sum of its proper divisors (6852799).

130202801 is an equidigital number, since it uses as much as digits as its factorization.

130202801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6852798.

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 130202801 is about 11410.6441974150. The cubic root of 130202801 is about 506.8429877921.

Adding to 130202801 its reverse (108202031), we get a palindrome (238404832).

The spelling of 130202801 in words is "one hundred thirty million, two hundred two thousand, eight hundred one".

Divisors: 1 19 6852779 130202801