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12057053430 = 235426194321
BaseRepresentation
bin10110011101010100…
…00000100011110110
31011010021110202221110
423032222000203312
5144143101202210
65312224255450
7604533156162
oct131652004366
934107422843
1012057053430
11512798a774
122405a71586
1311a1c1c556
1482542dca2
154a8790420
hex2cea808f6

12057053430 has 32 divisors (see below), whose sum is σ = 28944026208. Its totient is φ = 3214425600.

The previous prime is 12057053401. The next prime is 12057053443. The reversal of 12057053430 is 3435075021.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 80670 + ... + 174990.

It is an arithmetic number, because the mean of its divisors is an integer number (904500819).

Almost surely, 212057053430 is an apocalyptic number.

12057053430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12057053430 is an abundant number, since it is smaller than the sum of its proper divisors (16886972778).

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

12057053430 is a wasteful number, since it uses less digits than its factorization.

12057053430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98592.

The product of its (nonzero) digits is 12600, while the sum is 30.

The spelling of 12057053430 in words is "twelve billion, fifty-seven million, fifty-three thousand, four hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 4261 8522 12783 21305 25566 42610 63915 94321 127830 188642 282963 471605 565926 943210 1414815 2829630 401901781 803803562 1205705343 2009508905 2411410686 4019017810 6028526715 12057053430