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1082390715 = 33571145387
BaseRepresentation
bin100000010000011…
…1111100010111011
32210102201010221000
41000200333202323
54204043000330
6255223220043
735552112030
oct10040774273
92712633830
101082390715
11505a8818a
122625a7623
131433267a3
14a3a77387
1565058560
hex4083f8bb

1082390715 has 32 divisors (see below), whose sum is σ = 2199144960. Its totient is φ = 494806752.

The previous prime is 1082390657. The next prime is 1082390717. The reversal of 1082390715 is 5170932801.

It is not a de Polignac number, because 1082390715 - 27 = 1082390587 is a prime.

It is a super-2 number, since 2×10823907152 = 2343139319836422450, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1082390715.

It is not an unprimeable number, because it can be changed into a prime (1082390717) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 571749 + ... + 573638.

It is an arithmetic number, because the mean of its divisors is an integer number (68723280).

Almost surely, 21082390715 is an apocalyptic number.

1082390715 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1082390715 is an abundant number, since it is smaller than the sum of its proper divisors (1116754245).

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

1082390715 is a wasteful number, since it uses less digits than its factorization.

1082390715 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1145408 (or 1145402 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 36.

The square root of 1082390715 is about 32899.7069135882. The cubic root of 1082390715 is about 1026.7420591854.

The spelling of 1082390715 in words is "one billion, eighty-two million, three hundred ninety thousand, seven hundred fifteen".

Divisors: 1 3 5 7 9 15 21 27 35 45 63 105 135 189 315 945 1145387 3436161 5726935 8017709 10308483 17180805 24053127 30925449 40088545 51542415 72159381 120265635 154627245 216478143 360796905 1082390715