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1390795129 = 31233919181
BaseRepresentation
bin101001011100101…
…1101100101111001
310120221000201020201
41102321131211321
510322020421004
6350001322201
746315364203
oct12271354571
93527021221
101390795129
11654081a69
12329936361
131921a7ac9
14d29d7773
15821776a4
hex52e5d979

1390795129 has 8 divisors (see below), whose sum is σ = 1436348160. Its totient is φ = 1345285200.

The previous prime is 1390795127. The next prime is 1390795151. The reversal of 1390795129 is 9215970931.

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 1390795129 - 21 = 1390795127 is a prime.

It is a super-2 number, since 2×13907951292 = 3868622181700253282, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1390795121) 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, 62919 + ... + 82099.

It is an arithmetic number, because the mean of its divisors is an integer number (179543520).

Almost surely, 21390795129 is an apocalyptic number.

It is an amenable number.

1390795129 is a deficient number, since it is larger than the sum of its proper divisors (45553031).

1390795129 is a wasteful number, since it uses less digits than its factorization.

1390795129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21551.

The product of its (nonzero) digits is 153090, while the sum is 46.

The square root of 1390795129 is about 37293.3657504924. The cubic root of 1390795129 is about 1116.2317900996.

The spelling of 1390795129 in words is "one billion, three hundred ninety million, seven hundred ninety-five thousand, one hundred twenty-nine".

Divisors: 1 31 2339 19181 72509 594611 44864359 1390795129