Search a number
-
+
72260430 = 23511218971
BaseRepresentation
bin1000100111010…
…01101101001110
312000222012200020
410103221231032
5121444313210
611100443010
71535126544
oct423515516
9160865606
1072260430
1137875370
1220249466
1311c80668
14984dd94
156525770
hex44e9b4e

72260430 has 32 divisors (see below), whose sum is σ = 189191808. Its totient is φ = 17517600.

The previous prime is 72260429. The next prime is 72260459. The reversal of 72260430 is 3406227.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 72260430.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 109156 + ... + 109815.

It is an arithmetic number, because the mean of its divisors is an integer number (5912244).

Almost surely, 272260430 is an apocalyptic number.

72260430 is an abundant number, since it is smaller than the sum of its proper divisors (116931378).

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

72260430 is a wasteful number, since it uses less digits than its factorization.

72260430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218992.

The product of its (nonzero) digits is 2016, while the sum is 24.

The square root of 72260430 is about 8500.6135072711. The cubic root of 72260430 is about 416.5177501614.

Adding to 72260430 its reverse (3406227), we get a palindrome (75666657).

The spelling of 72260430 in words is "seventy-two million, two hundred sixty thousand, four hundred thirty".

Divisors: 1 2 3 5 6 10 11 15 22 30 33 55 66 110 165 330 218971 437942 656913 1094855 1313826 2189710 2408681 3284565 4817362 6569130 7226043 12043405 14452086 24086810 36130215 72260430