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130312001 = 537931123
BaseRepresentation
bin1111100010001…
…10011101000001
3100002012112110102
413301012131001
5231324441001
620533012145
73141430241
oct761063501
9302175412
10130312001
1167615376
1237784055
1320cc77c1
1413441b21
15b690e6b
hex7c46741

130312001 has 8 divisors (see below), whose sum is σ = 134455680. Its totient is φ = 126230832.

The previous prime is 130311991. The next prime is 130312019. The reversal of 130312001 is 100213031.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 130312001 - 222 = 126117697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (130312601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11375 + ... + 19748.

It is an arithmetic number, because the mean of its divisors is an integer number (16806960).

Almost surely, 2130312001 is an apocalyptic number.

It is an amenable number.

130312001 is a deficient number, since it is larger than the sum of its proper divisors (4143679).

130312001 is an equidigital number, since it uses as much as digits as its factorization.

130312001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31255.

The product of its (nonzero) digits is 18, while the sum is 11.

The square root of 130312001 is about 11415.4282004662. The cubic root of 130312001 is about 506.9846431890.

Adding to 130312001 its reverse (100213031), we get a palindrome (230525032).

It can be divided in two parts, 13031 and 2001, that multiplied together give a triangular number (26075031 = T7221).

The spelling of 130312001 in words is "one hundred thirty million, three hundred twelve thousand, one".

Divisors: 1 53 79 4187 31123 1649519 2458717 130312001