Search a number
-
+
15045142105 = 57429861203
BaseRepresentation
bin11100000001100001…
…01010011001011001
31102211112002102000101
432000300222121121
5221303024021410
610524525335401
71041555412030
oct160060523131
942745072011
1015045142105
116420654a44
122aba707561
131559cc3266
14a2a215717
155d0c7ed3a
hex380c2a659

15045142105 has 8 divisors (see below), whose sum is σ = 20633337792. Its totient is φ = 10316668848.

The previous prime is 15045142097. The next prime is 15045142109. The reversal of 15045142105 is 50124154051.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 15045142105 - 23 = 15045142097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15045142109) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 214930567 + ... + 214930636.

It is an arithmetic number, because the mean of its divisors is an integer number (2579167224).

Almost surely, 215045142105 is an apocalyptic number.

It is an amenable number.

15045142105 is a deficient number, since it is larger than the sum of its proper divisors (5588195687).

15045142105 is an equidigital number, since it uses as much as digits as its factorization.

15045142105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 429861215.

The product of its (nonzero) digits is 4000, while the sum is 28.

Adding to 15045142105 its reverse (50124154051), we get a palindrome (65169296156).

The spelling of 15045142105 in words is "fifteen billion, forty-five million, one hundred forty-two thousand, one hundred five".

Divisors: 1 5 7 35 429861203 2149306015 3009028421 15045142105