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15142308 = 22317199373
BaseRepresentation
bin111001110000…
…110110100100
31001111022100020
4321300312210
512334023213
61300315140
7242464446
oct71606644
931438306
1015142308
118602705
1250a2ab0
1331a235c
142022496
1514e1923
hexe70da4

15142308 has 48 divisors (see below), whose sum is σ = 37699200. Its totient is φ = 4713984.

The previous prime is 15142307. The next prime is 15142313. The reversal of 15142308 is 80324151.

15142308 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15142307) 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, 40410 + ... + 40782.

It is an arithmetic number, because the mean of its divisors is an integer number (785400).

Almost surely, 215142308 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 15142308, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18849600).

15142308 is an abundant number, since it is smaller than the sum of its proper divisors (22556892).

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

15142308 is a wasteful number, since it uses less digits than its factorization.

15142308 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 596 (or 594 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 24.

The square root of 15142308 is about 3891.3118610566. The cubic root of 15142308 is about 247.3986688545.

Adding to 15142308 its reverse (80324151), we get a palindrome (95466459).

The spelling of 15142308 in words is "fifteen million, one hundred forty-two thousand, three hundred eight".

Divisors: 1 2 3 4 6 12 17 34 51 68 102 199 204 373 398 597 746 796 1119 1194 1492 2238 2388 3383 4476 6341 6766 10149 12682 13532 19023 20298 25364 38046 40596 74227 76092 148454 222681 296908 445362 890724 1261859 2523718 3785577 5047436 7571154 15142308