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19116132 = 2237892557
BaseRepresentation
bin100100011101…
…1000001100100
31022222012101220
41020323001210
514343204012
61521420340
7321325110
oct110730144
938865356
1019116132
11a877262
12649a6b0
133c64029
142778740
151a2908c
hex123b064

19116132 has 48 divisors (see below), whose sum is σ = 51569280. Its totient is φ = 5398272.

The previous prime is 19116121. The next prime is 19116137. The reversal of 19116132 is 23161191.

It is not an unprimeable number, because it can be changed into a prime (19116137) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6198 + ... + 8754.

It is an arithmetic number, because the mean of its divisors is an integer number (1074360).

Almost surely, 219116132 is an apocalyptic number.

19116132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 19116132, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25784640).

19116132 is an abundant number, since it is smaller than the sum of its proper divisors (32453148).

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

19116132 is a wasteful number, since it uses less digits than its factorization.

19116132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2660 (or 2658 counting only the distinct ones).

The product of its digits is 324, while the sum is 24.

The square root of 19116132 is about 4372.1999039385. The cubic root of 19116132 is about 267.3827220494.

The spelling of 19116132 in words is "nineteen million, one hundred sixteen thousand, one hundred thirty-two".

Divisors: 1 2 3 4 6 7 12 14 21 28 42 84 89 178 267 356 534 623 1068 1246 1869 2492 2557 3738 5114 7476 7671 10228 15342 17899 30684 35798 53697 71596 107394 214788 227573 455146 682719 910292 1365438 1593011 2730876 3186022 4779033 6372044 9558066 19116132