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1395274369 = 2376978887
BaseRepresentation
bin101001100101010…
…0011001010000001
310121020110021121111
41103022203022001
510324142234434
6350241323321
746401431206
oct12312431201
93536407544
101395274369
11656661315
1232b336541
131930b5848
14d3441cad
158275e964
hex532a3281

1395274369 has 8 divisors (see below), whose sum is σ = 1457850240. Its totient is φ = 1332857856.

The previous prime is 1395274339. The next prime is 1395274409. The reversal of 1395274369 is 9634725931.

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 1395274369 - 27 = 1395274241 is a prime.

It is a super-2 number, since 2×13952743692 = 3893581129576696322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1395274339) 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, 21757 + ... + 57130.

It is an arithmetic number, because the mean of its divisors is an integer number (182231280).

Almost surely, 21395274369 is an apocalyptic number.

It is an amenable number.

1395274369 is a deficient number, since it is larger than the sum of its proper divisors (62575871).

1395274369 is an equidigital number, since it uses as much as digits as its factorization.

1395274369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79679.

The product of its digits is 1224720, while the sum is 49.

The square root of 1395274369 is about 37353.3715881177. The cubic root of 1395274369 is about 1117.4288300712.

The spelling of 1395274369 in words is "one billion, three hundred ninety-five million, two hundred seventy-four thousand, three hundred sixty-nine".

Divisors: 1 23 769 17687 78887 1814401 60664103 1395274369