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130072209 = 360771429
BaseRepresentation
bin1111100000010…
…11111010010001
3100001202100112020
413300023322101
5231244302314
620523522053
73136411161
oct760137221
9301670466
10130072209
11674711a3
1237689329
1320c42607
14133bc5a1
15b644da9
hex7c0be91

130072209 has 8 divisors (see below), whose sum is σ = 173717760. Its totient is φ = 86570736.

The previous prime is 130072193. The next prime is 130072231. The reversal of 130072209 is 902270031.

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

It is not a de Polignac number, because 130072209 - 24 = 130072193 is a prime.

It is not an unprimeable number, because it can be changed into a prime (130072289) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33894 + ... + 37535.

It is an arithmetic number, because the mean of its divisors is an integer number (21714720).

Almost surely, 2130072209 is an apocalyptic number.

It is an amenable number.

130072209 is a deficient number, since it is larger than the sum of its proper divisors (43645551).

130072209 is an equidigital number, since it uses as much as digits as its factorization.

130072209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72039.

The product of its (nonzero) digits is 756, while the sum is 24.

The square root of 130072209 is about 11404.9203855178. The cubic root of 130072209 is about 506.6734784307.

The spelling of 130072209 in words is "one hundred thirty million, seventy-two thousand, two hundred nine".

Divisors: 1 3 607 1821 71429 214287 43357403 130072209