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12525525030 = 23517137179269
BaseRepresentation
bin10111010101001010…
…00101100000100110
31012022220222121011110
423222211011200212
5201123013300110
65430521245450
7622252130454
oct135245054046
935286877143
1012525525030
115348372387
122516933886
131247cb5a95
1486b7399d4
154d497ba20
hex2ea945826

12525525030 has 64 divisors (see below), whose sum is σ = 32062080960. Its totient is φ = 3120697344.

The previous prime is 12525525029. The next prime is 12525525031. The reversal of 12525525030 is 3052552521.

It is an interprime number because it is at equal distance from previous prime (12525525029) and next prime (12525525031).

It is a super-3 number, since 3×125255250303 (a number of 31 digits) contains 333 as substring.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12525525031) 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, 19765 + ... + 159504.

It is an arithmetic number, because the mean of its divisors is an integer number (500970015).

Almost surely, 212525525030 is an apocalyptic number.

12525525030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12525525030 is an abundant number, since it is smaller than the sum of its proper divisors (19536555930).

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

12525525030 is a wasteful number, since it uses less digits than its factorization.

12525525030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179433.

The product of its (nonzero) digits is 15000, while the sum is 30.

The spelling of 12525525030 in words is "twelve billion, five hundred twenty-five million, five hundred twenty-five thousand, thirty".

Divisors: 1 2 3 5 6 10 15 17 30 34 51 85 102 137 170 255 274 411 510 685 822 1370 2055 2329 4110 4658 6987 11645 13974 23290 34935 69870 179269 358538 537807 896345 1075614 1792690 2689035 3047573 5378070 6095146 9142719 15237865 18285438 24559853 30475730 45713595 49119706 73679559 91427190 122799265 147359118 245598530 368397795 417517501 736795590 835035002 1252552503 2087587505 2505105006 4175175010 6262762515 12525525030