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1902379068 = 223317614621
BaseRepresentation
bin111000101100100…
…0000000000111100
311220120122212111000
41301121000000330
512344002112233
6512434330300
765066645442
oct16131000074
94816585430
101902379068
11896930607
12451129990
132441876b5
14140926b92
15b202cd13
hex7164003c

1902379068 has 24 divisors (see below), whose sum is σ = 4932094160. Its totient is φ = 634126320.

The previous prime is 1902379043. The next prime is 1902379081. The reversal of 1902379068 is 8609732091.

It is a super-2 number, since 2×19023790682 = 7238092236729097248, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8807203 + ... + 8807418.

Almost surely, 21902379068 is an apocalyptic number.

1902379068 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1902379068 is an abundant number, since it is smaller than the sum of its proper divisors (3029715092).

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

1902379068 is a wasteful number, since it uses less digits than its factorization.

1902379068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17614634 (or 17614626 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 45.

The square root of 1902379068 is about 43616.2706796443. The cubic root of 1902379068 is about 1239.0790655944.

The spelling of 1902379068 in words is "one billion, nine hundred two million, three hundred seventy-nine thousand, sixty-eight".

Divisors: 1 2 3 4 6 9 12 18 27 36 54 108 17614621 35229242 52843863 70458484 105687726 158531589 211375452 317063178 475594767 634126356 951189534 1902379068