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130757 = 1111887
BaseRepresentation
bin11111111011000101
320122100212
4133323011
513141012
62445205
71053134
oct377305
9218325
10130757
118a270
1263805
1347693
143591b
1528b22
hex1fec5

130757 has 4 divisors (see below), whose sum is σ = 142656. Its totient is φ = 118860.

The previous prime is 130729. The next prime is 130769. The reversal of 130757 is 757031.

It is a happy number.

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, and also an emirpimes, since its reverse is a distinct semiprime: 757031 = 1168821.

It is a cyclic number.

It is not a de Polignac number, because 130757 - 26 = 130693 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130787) 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, 5933 + ... + 5954.

It is an arithmetic number, because the mean of its divisors is an integer number (35664).

2130757 is an apocalyptic number.

It is an amenable number.

130757 is a deficient number, since it is larger than the sum of its proper divisors (11899).

130757 is a wasteful number, since it uses less digits than its factorization.

130757 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11898.

The product of its (nonzero) digits is 735, while the sum is 23.

The square root of 130757 is about 361.6033738781. The cubic root of 130757 is about 50.7561083671.

Adding to 130757 its reverse (757031), we get a palindrome (887788).

The spelling of 130757 in words is "one hundred thirty thousand, seven hundred fifty-seven".

Divisors: 1 11 11887 130757