[go: up one dir, main page]

Search a number
-
+
72608493 = 3231377681
BaseRepresentation
bin1000101001111…
…10101011101101
312001121220010110
410110332223231
5122041432433
611112130233
71541106366
oct424765355
9161556113
1072608493
1137a92921
1220396979
1312072c09
149900b6d
156593963
hex453eaed

72608493 has 16 divisors (see below), whose sum is σ = 101771136. Its totient is φ = 45957120.

The previous prime is 72608449. The next prime is 72608507. The reversal of 72608493 is 39480627.

It is not a de Polignac number, because 72608493 - 26 = 72608429 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72608413) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5613 + ... + 13293.

It is an arithmetic number, because the mean of its divisors is an integer number (6360696).

Almost surely, 272608493 is an apocalyptic number.

It is an amenable number.

72608493 is a deficient number, since it is larger than the sum of its proper divisors (29162643).

72608493 is a wasteful number, since it uses less digits than its factorization.

72608493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7844.

The product of its (nonzero) digits is 72576, while the sum is 39.

The square root of 72608493 is about 8521.0617296203. The cubic root of 72608493 is about 417.1854381724.

It can be divided in two parts, 7260 and 8493, that added together give a triangular number (15753 = T177).

The spelling of 72608493 in words is "seventy-two million, six hundred eight thousand, four hundred ninety-three".

Divisors: 1 3 23 69 137 411 3151 7681 9453 23043 176663 529989 1052297 3156891 24202831 72608493