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15150138 = 235942797
BaseRepresentation
bin111001110010…
…110000111010
31001111201002020
4321302300322
512334301023
61300415310
7242526333
oct71626072
931451066
1015150138
118608583
1250a7536
1331a5aa3
14202528a
1514e3de3
hexe72c3a

15150138 has 16 divisors (see below), whose sum is σ = 30814560. Its totient is φ = 4964336.

The previous prime is 15150137. The next prime is 15150199. The reversal of 15150138 is 83105151.

It is not an unprimeable number, because it can be changed into a prime (15150137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21045 + ... + 21752.

It is an arithmetic number, because the mean of its divisors is an integer number (1925910).

Almost surely, 215150138 is an apocalyptic number.

15150138 is an abundant number, since it is smaller than the sum of its proper divisors (15664422).

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

15150138 is a wasteful number, since it uses less digits than its factorization.

15150138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42861.

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

The square root of 15150138 is about 3892.3178184727. The cubic root of 15150138 is about 247.4413043140.

Adding to 15150138 its reverse (83105151), we get a palindrome (98255289).

The spelling of 15150138 in words is "fifteen million, one hundred fifty thousand, one hundred thirty-eight".

Divisors: 1 2 3 6 59 118 177 354 42797 85594 128391 256782 2525023 5050046 7575069 15150138