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130660777 = 1319528991
BaseRepresentation
bin1111100100110…
…11100110101001
3100002212020220001
413302123212221
5231422121102
620544303001
73144412132
oct762334651
9302766801
10130660777
1167833415
1237911a61
13210ba490
14134d2c89
15b70e487
hex7c9b9a9

130660777 has 8 divisors (see below), whose sum is σ = 148117760. Its totient is φ = 114261840.

The previous prime is 130660763. The next prime is 130660837. The reversal of 130660777 is 777066031.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-130660777 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (130660757) 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, 264249 + ... + 264742.

It is an arithmetic number, because the mean of its divisors is an integer number (18514720).

Almost surely, 2130660777 is an apocalyptic number.

It is an amenable number.

130660777 is a deficient number, since it is larger than the sum of its proper divisors (17456983).

130660777 is a wasteful number, since it uses less digits than its factorization.

130660777 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 529023.

The product of its (nonzero) digits is 37044, while the sum is 37.

The square root of 130660777 is about 11430.6945108335. The cubic root of 130660777 is about 507.4365497773.

The spelling of 130660777 in words is "one hundred thirty million, six hundred sixty thousand, seven hundred seventy-seven".

Divisors: 1 13 19 247 528991 6876883 10050829 130660777