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1053128994 = 23541324439
BaseRepresentation
bin111110110001010…
…111100100100010
32201101122111101120
4332301113210202
54124100111434
6252300113110
735045306631
oct7661274442
92641574346
101053128994
114a0511445
12254835796
1313a24c868
149dc1b518
15626c8349
hex3ec57922

1053128994 has 16 divisors (see below), whose sum is σ = 2110157760. Its totient is φ = 350393040.

The previous prime is 1053128987. The next prime is 1053129029. The reversal of 1053128994 is 4998213501.

It is a super-2 number, since 2×10531289942 = 2218161356006904072, which contains 22 as substring.

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, 158974 + ... + 165465.

It is an arithmetic number, because the mean of its divisors is an integer number (131884860).

Almost surely, 21053128994 is an apocalyptic number.

1053128994 is an abundant number, since it is smaller than the sum of its proper divisors (1057028766).

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

1053128994 is a wasteful number, since it uses less digits than its factorization.

1053128994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 324985.

The product of its (nonzero) digits is 77760, while the sum is 42.

The square root of 1053128994 is about 32451.9490015623. The cubic root of 1053128994 is about 1017.4049740313.

The spelling of 1053128994 in words is "one billion, fifty-three million, one hundred twenty-eight thousand, nine hundred ninety-four".

Divisors: 1 2 3 6 541 1082 1623 3246 324439 648878 973317 1946634 175521499 351042998 526564497 1053128994