Search a number
-
+
78734060 = 22523171161
BaseRepresentation
bin1001011000101…
…10001011101100
312111011002211022
410230112023230
5130123442220
611451313312
71644141236
oct454261354
9174132738
1078734060
1140497079
122244b838
1313409102
14a657256
156da3925
hex4b162ec

78734060 has 24 divisors (see below), whose sum is σ = 172531296. Its totient is φ = 30124160.

The previous prime is 78734059. The next prime is 78734069. The reversal of 78734060 is 6043787.

It is a self number, because there is not a number n which added to its sum of digits gives 78734060.

It is not an unprimeable number, because it can be changed into a prime (78734069) by changing a digit.

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, 85121 + ... + 86040.

It is an arithmetic number, because the mean of its divisors is an integer number (7188804).

Almost surely, 278734060 is an apocalyptic number.

It is an amenable number.

78734060 is an abundant number, since it is smaller than the sum of its proper divisors (93797236).

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

78734060 is a wasteful number, since it uses less digits than its factorization.

78734060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171193 (or 171191 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 35.

The square root of 78734060 is about 8873.2215119425. The cubic root of 78734060 is about 428.6020220488.

The spelling of 78734060 in words is "seventy-eight million, seven hundred thirty-four thousand, sixty".

Divisors: 1 2 4 5 10 20 23 46 92 115 230 460 171161 342322 684644 855805 1711610 3423220 3936703 7873406 15746812 19683515 39367030 78734060