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130311001 = 177665353
BaseRepresentation
bin1111100010001…
…10001101011001
3100002012111002101
413301012031121
5231324423001
620533003401
73141424312
oct761061531
9302174071
10130311001
1167614647
1237783561
1320cc7202
1413441609
15b690a01
hex7c46359

130311001 has 4 divisors (see below), whose sum is σ = 137976372. Its totient is φ = 122645632.

The previous prime is 130310989. The next prime is 130311043. The reversal of 130311001 is 100113031.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 100113031 = 415724083.

It can be written as a sum of positive squares in 2 ways, for example, as 36240400 + 94070601 = 6020^2 + 9699^2 .

It is a cyclic number.

It is not a de Polignac number, because 130311001 - 211 = 130308953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (130311901) 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, 3832660 + ... + 3832693.

It is an arithmetic number, because the mean of its divisors is an integer number (34494093).

Almost surely, 2130311001 is an apocalyptic number.

It is an amenable number.

130311001 is a deficient number, since it is larger than the sum of its proper divisors (7665371).

130311001 is an equidigital number, since it uses as much as digits as its factorization.

130311001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7665370.

The product of its (nonzero) digits is 9, while the sum is 10.

The square root of 130311001 is about 11415.3844000104. The cubic root of 130311001 is about 506.9833463376.

Adding to 130311001 its reverse (100113031), we get a palindrome (230424032).

It can be divided in two parts, 13031 and 1001, that multiplied together give a palindrome (13044031).

The spelling of 130311001 in words is "one hundred thirty million, three hundred eleven thousand, one".

Divisors: 1 17 7665353 130311001