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1072830919 = 31131264179
BaseRepresentation
bin111111111100100…
…001100111000111
32202202201110100111
4333330201213013
54144121042134
6254242253451
735404624636
oct7774414707
92682643314
101072830919
11500648826
1225b357287
1314135a3c4
14a26a951d
15642bac64
hex3ff219c7

1072830919 has 8 divisors (see below), whose sum is σ = 1115896320. Its totient is φ = 1030294200.

The previous prime is 1072830907. The next prime is 1072830937. The reversal of 1072830919 is 9190382701.

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 1072830919 - 213 = 1072822727 is a prime.

It is a super-2 number, since 2×10728309192 = 2301932361524769122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1072830949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 128029 + ... + 136150.

It is an arithmetic number, because the mean of its divisors is an integer number (139487040).

Almost surely, 21072830919 is an apocalyptic number.

1072830919 is a deficient number, since it is larger than the sum of its proper divisors (43065401).

1072830919 is a wasteful number, since it uses less digits than its factorization.

1072830919 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 264341.

The product of its (nonzero) digits is 27216, while the sum is 40.

The square root of 1072830919 is about 32754.0977436412. The cubic root of 1072830919 is about 1023.7103491754.

The spelling of 1072830919 in words is "one billion, seventy-two million, eight hundred thirty thousand, nine hundred nineteen".

Divisors: 1 31 131 4061 264179 8189549 34607449 1072830919