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15142107 = 319421631
BaseRepresentation
bin111001110000…
…110011011011
31001111022001210
4321300303123
512334021412
61300314203
7242464041
oct71606333
931438053
1015142107
118602542
1250a2963
1331a2236
142022391
1514e183c
hexe70cdb

15142107 has 16 divisors (see below), whose sum is σ = 21336320. Its totient is φ = 9525600.

The previous prime is 15142103. The next prime is 15142123. The reversal of 15142107 is 70124151.

It is a happy number.

It is not a de Polignac number, because 15142107 - 22 = 15142103 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15142103) 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, 23682 + ... + 24312.

It is an arithmetic number, because the mean of its divisors is an integer number (1333520).

Almost surely, 215142107 is an apocalyptic number.

15142107 is a deficient number, since it is larger than the sum of its proper divisors (6194213).

15142107 is a wasteful number, since it uses less digits than its factorization.

15142107 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1074.

The product of its (nonzero) digits is 280, while the sum is 21.

The square root of 15142107 is about 3891.2860342051. The cubic root of 15142107 is about 247.3975741875.

Adding to 15142107 its reverse (70124151), we get a palindrome (85266258).

The spelling of 15142107 in words is "fifteen million, one hundred forty-two thousand, one hundred seven".