Search a number
-
+
72799860 = 223572943139
BaseRepresentation
bin1000101011011…
…01011001110100
312001222121122010
410111231121310
5122114043420
611120204220
71542534330
oct425553164
9161877563
1072799860
1138103681
1220469670
131210c053
1499507c0
1565d04e0
hex456d674

72799860 has 192 divisors, whose sum is σ = 248371200. Its totient is φ = 15579648.

The previous prime is 72799847. The next prime is 72799877. The reversal of 72799860 is 6899727.

It is a hoax number, since the sum of its digits (48) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 523671 + ... + 523809.

It is an arithmetic number, because the mean of its divisors is an integer number (1293600).

Almost surely, 272799860 is an apocalyptic number.

72799860 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 72799860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (124185600).

72799860 is an abundant number, since it is smaller than the sum of its proper divisors (175571340).

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

72799860 is a wasteful number, since it uses less digits than its factorization.

72799860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230 (or 228 counting only the distinct ones).

The product of its (nonzero) digits is 381024, while the sum is 48.

The square root of 72799860 is about 8532.2833989501. The cubic root of 72799860 is about 417.5516280710.

The spelling of 72799860 in words is "seventy-two million, seven hundred ninety-nine thousand, eight hundred sixty".