Search a number
-
+
72142060 = 2253607103
BaseRepresentation
bin1000100110011…
…00110011101100
312000202012022011
410103030303230
5121432021220
611054131004
71534124464
oct423146354
9160665264
1072142060
11377a4441
12201b0a64
1311c3b813
14981cba4
15650065a
hex44cccec

72142060 has 12 divisors (see below), whose sum is σ = 151498368. Its totient is φ = 28856816.

The previous prime is 72142043. The next prime is 72142079. The reversal of 72142060 is 6024127.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 1803532 + ... + 1803571.

It is an arithmetic number, because the mean of its divisors is an integer number (12624864).

Almost surely, 272142060 is an apocalyptic number.

It is an amenable number.

72142060 is an abundant number, since it is smaller than the sum of its proper divisors (79356308).

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

72142060 is a wasteful number, since it uses less digits than its factorization.

72142060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3607112 (or 3607110 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 22.

The square root of 72142060 is about 8493.6482149898. The cubic root of 72142060 is about 416.2901929223.

Adding to 72142060 its reverse (6024127), we get a palindrome (78166187).

The spelling of 72142060 in words is "seventy-two million, one hundred forty-two thousand, sixty".

Divisors: 1 2 4 5 10 20 3607103 7214206 14428412 18035515 36071030 72142060