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15138150 = 2352432347
BaseRepresentation
bin111001101111…
…110101100110
31001111002122020
4321233311212
512333410100
61300244010
7242446356
oct71576546
931432566
1015138150
1185aa575
1250a0606
1331a04b1
142020b66
1514e05a0
hexe6fd66

15138150 has 48 divisors (see below), whose sum is σ = 38432064. Its totient is φ = 3941280.

The previous prime is 15138139. The next prime is 15138197. The reversal of 15138150 is 5183151.

It is a self number, because there is not a number n which added to its sum of digits gives 15138150.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5277 + ... + 7623.

It is an arithmetic number, because the mean of its divisors is an integer number (800668).

Almost surely, 215138150 is an apocalyptic number.

15138150 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 15138150, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19216032).

15138150 is an abundant number, since it is smaller than the sum of its proper divisors (23293914).

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

15138150 is a wasteful number, since it uses less digits than its factorization.

15138150 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2405 (or 2400 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 24.

The square root of 15138150 is about 3890.7775572500. Note that the first 3 decimals coincide. The cubic root of 15138150 is about 247.3760219802.

The spelling of 15138150 in words is "fifteen million, one hundred thirty-eight thousand, one hundred fifty".

Divisors: 1 2 3 5 6 10 15 25 30 43 50 75 86 129 150 215 258 430 645 1075 1290 2150 2347 3225 4694 6450 7041 11735 14082 23470 35205 58675 70410 100921 117350 176025 201842 302763 352050 504605 605526 1009210 1513815 2523025 3027630 5046050 7569075 15138150