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12019162900 = 2252235225723
BaseRepresentation
bin10110011000110010…
…11101111100010100
31011000122011201220111
423030121131330110
5144103401203100
65304352212404
7603563125153
oct131431357424
934018151814
1012019162900
11510855aa88
1223b523a104
131197113c14
148203a959a
154a52a86ba
hex2cc65df14

12019162900 has 36 divisors (see below), whose sum is σ = 27215570592. Its totient is φ = 4598635360.

The previous prime is 12019162873. The next prime is 12019162901. The reversal of 12019162900 is 926191021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12019162901) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2610562 + ... + 2615161.

It is an arithmetic number, because the mean of its divisors is an integer number (755988072).

Almost surely, 212019162900 is an apocalyptic number.

12019162900 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12019162900 is an abundant number, since it is smaller than the sum of its proper divisors (15196407692).

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

12019162900 is a wasteful number, since it uses less digits than its factorization.

12019162900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5225760 (or 5225753 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 31.

The spelling of 12019162900 in words is "twelve billion, nineteen million, one hundred sixty-two thousand, nine hundred".

Divisors: 1 2 4 5 10 20 23 25 46 50 92 100 115 230 460 575 1150 2300 5225723 10451446 20902892 26128615 52257230 104514460 120191629 130643075 240383258 261286150 480766516 522572300 600958145 1201916290 2403832580 3004790725 6009581450 12019162900