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1390108326 = 231713628513
BaseRepresentation
bin101001011011011…
…0101111010100110
310120212201211010120
41102312311322212
510321331431301
6345534502410
746306503645
oct12266657246
93525654116
101390108326
11653752a62
12329664a06
13191cc7309
14d289935c
158208de36
hex52db5ea6

1390108326 has 16 divisors (see below), whose sum is σ = 2943759024. Its totient is φ = 436112384.

The previous prime is 1390108297. The next prime is 1390108333. The reversal of 1390108326 is 6238010931.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6814155 + ... + 6814358.

It is an arithmetic number, because the mean of its divisors is an integer number (183984939).

Almost surely, 21390108326 is an apocalyptic number.

1390108326 is an abundant number, since it is smaller than the sum of its proper divisors (1553650698).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1390108326 is a wasteful number, since it uses less digits than its factorization.

1390108326 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13628535.

The product of its (nonzero) digits is 7776, while the sum is 33.

The square root of 1390108326 is about 37284.1565011199. The cubic root of 1390108326 is about 1116.0480205053.

The spelling of 1390108326 in words is "one billion, three hundred ninety million, one hundred eight thousand, three hundred twenty-six".

Divisors: 1 2 3 6 17 34 51 102 13628513 27257026 40885539 81771078 231684721 463369442 695054163 1390108326