Search a number
-
+
78480732 = 22311594551
BaseRepresentation
bin1001010110110…
…00010101011100
312110200020022210
410223120111130
5130042340412
611442040420
71642034541
oct453302534
9173606283
1078480732
1140333810
1222349110
131334aa05
14a5ccbc8
156d5383c
hex4ad855c

78480732 has 24 divisors (see below), whose sum is σ = 199769472. Its totient is φ = 23782000.

The previous prime is 78480713. The next prime is 78480749. The reversal of 78480732 is 23708487.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 297144 + ... + 297407.

It is an arithmetic number, because the mean of its divisors is an integer number (8323728).

Almost surely, 278480732 is an apocalyptic number.

It is an amenable number.

78480732 is an abundant number, since it is smaller than the sum of its proper divisors (121288740).

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

78480732 is a wasteful number, since it uses less digits than its factorization.

78480732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 594569 (or 594567 counting only the distinct ones).

The product of its (nonzero) digits is 75264, while the sum is 39.

The square root of 78480732 is about 8858.9351504569. The cubic root of 78480732 is about 428.1418503819.

The spelling of 78480732 in words is "seventy-eight million, four hundred eighty thousand, seven hundred thirty-two".

Divisors: 1 2 3 4 6 11 12 22 33 44 66 132 594551 1189102 1783653 2378204 3567306 6540061 7134612 13080122 19620183 26160244 39240366 78480732