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130137747 = 343379249
BaseRepresentation
bin1111100000110…
…11111010010011
3100001212200102120
413300123322103
5231303401442
620525145323
73140103225
oct760337223
9301780376
10130137747
1167506463
12376bb243
1320c663ac
14133d8415
15b6594ec
hex7c1be93

130137747 has 4 divisors (see below), whose sum is σ = 173517000. Its totient is φ = 86758496.

The previous prime is 130137701. The next prime is 130137751. The reversal of 130137747 is 747731031.

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 130137747 - 211 = 130135699 is a prime.

It is not an unprimeable number, because it can be changed into a prime (130137767) 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, 21689622 + ... + 21689627.

It is an arithmetic number, because the mean of its divisors is an integer number (43379250).

Almost surely, 2130137747 is an apocalyptic number.

130137747 is a deficient number, since it is larger than the sum of its proper divisors (43379253).

130137747 is an equidigital number, since it uses as much as digits as its factorization.

130137747 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43379252.

The product of its (nonzero) digits is 12348, while the sum is 33.

The square root of 130137747 is about 11407.7932572431. The cubic root of 130137747 is about 506.7585614040.

Adding to 130137747 its reverse (747731031), we get a palindrome (877868778).

The spelling of 130137747 in words is "one hundred thirty million, one hundred thirty-seven thousand, seven hundred forty-seven".

Divisors: 1 3 43379249 130137747