Search a number
-
+
15150042 = 232978677
BaseRepresentation
bin111001110010…
…101111011010
31001111200221200
4321302233122
512334300132
61300415030
7242526135
oct71625732
931450850
1015150042
1186084a6
1250a7476
1331a5a2b
14202521c
1514e3d7c
hexe72bda

15150042 has 24 divisors (see below), whose sum is σ = 33167316. Its totient is φ = 4997376.

The previous prime is 15150017. The next prime is 15150053. The reversal of 15150042 is 24005151.

It can be written as a sum of positive squares in 2 ways, for example, as 14814801 + 335241 = 3849^2 + 579^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 15149997 and 15150024.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2593 + ... + 6084.

Almost surely, 215150042 is an apocalyptic number.

15150042 is an abundant number, since it is smaller than the sum of its proper divisors (18017274).

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

15150042 is a wasteful number, since it uses less digits than its factorization.

15150042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8782 (or 8779 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 18.

The square root of 15150042 is about 3892.3054864694. The cubic root of 15150042 is about 247.4407816694.

Adding to 15150042 its reverse (24005151), we get a palindrome (39155193).

The spelling of 15150042 in words is "fifteen million, one hundred fifty thousand, forty-two".

Divisors: 1 2 3 6 9 18 97 194 291 582 873 1746 8677 17354 26031 52062 78093 156186 841669 1683338 2525007 5050014 7575021 15150042