Search a number
-
+
13572137 = 171942019
BaseRepresentation
bin110011110001…
…100000101001
3221112112110202
4303301200221
511433302022
61202521545
7223234625
oct63614051
927475422
1013572137
11772aa47
1246662b5
132a72767
141b34185
1512d1592
hexcf1829

13572137 has 8 divisors (see below), whose sum is σ = 15127200. Its totient is φ = 12101184.

The previous prime is 13572131. The next prime is 13572151. The reversal of 13572137 is 73127531.

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 13572137 - 210 = 13571113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13572131) 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 7 ways as a sum of consecutive naturals, for example, 20687 + ... + 21332.

It is an arithmetic number, because the mean of its divisors is an integer number (1890900).

Almost surely, 213572137 is an apocalyptic number.

13572137 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

13572137 is a deficient number, since it is larger than the sum of its proper divisors (1555063).

13572137 is a wasteful number, since it uses less digits than its factorization.

13572137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42055.

The product of its digits is 4410, while the sum is 29.

The square root of 13572137 is about 3684.0381376962. The cubic root of 13572137 is about 238.5335170238.

Adding to 13572137 its reverse (73127531), we get a palindrome (86699668).

The spelling of 13572137 in words is "thirteen million, five hundred seventy-two thousand, one hundred thirty-seven".

Divisors: 1 17 19 323 42019 714323 798361 13572137