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15042129 = 3191631619
BaseRepresentation
bin111001011000…
…011001010001
31001022012220220
4321120121101
512322322004
61254223253
7241566414
oct71303121
931265826
1015042129
118544413
125054b29
13316888b
141dd7b7b
1514c1dd9
hexe58651

15042129 has 16 divisors (see below), whose sum is σ = 21254400. Its totient is φ = 9436176.

The previous prime is 15042119. The next prime is 15042133. The reversal of 15042129 is 92124051.

It is not a de Polignac number, because 15042129 - 24 = 15042113 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 15042099 and 15042108.

It is not an unprimeable number, because it can be changed into a prime (15042119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8482 + ... + 10100.

It is an arithmetic number, because the mean of its divisors is an integer number (1328400).

Almost surely, 215042129 is an apocalyptic number.

15042129 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

15042129 is a deficient number, since it is larger than the sum of its proper divisors (6212271).

15042129 is a wasteful number, since it uses less digits than its factorization.

15042129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1804.

The product of its (nonzero) digits is 720, while the sum is 24.

The square root of 15042129 is about 3878.4183631991. The cubic root of 15042129 is about 246.8518783879.

The spelling of 15042129 in words is "fifteen million, forty-two thousand, one hundred twenty-nine".

Divisors: 1 3 19 57 163 489 1619 3097 4857 9291 30761 92283 263897 791691 5014043 15042129