Search a number
-
+
78103264 = 252984163
BaseRepresentation
bin1001010011111…
…00001011100000
312102222001112111
410221330023200
5124443301024
611430005104
71635603211
oct451741340
9172861474
1078103264
11400a6158
12221a6794
1313247c65
14a531408
156ccba94
hex4a7c2e0

78103264 has 24 divisors (see below), whose sum is σ = 159069960. Its totient is φ = 37704576.

The previous prime is 78103247. The next prime is 78103279. The reversal of 78103264 is 46230187.

It is a super-2 number, since 2×781032642 = 12200239694907392, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41154 + ... + 43009.

It is an arithmetic number, because the mean of its divisors is an integer number (6627915).

Almost surely, 278103264 is an apocalyptic number.

It is an amenable number.

78103264 is an abundant number, since it is smaller than the sum of its proper divisors (80966696).

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

78103264 is a wasteful number, since it uses less digits than its factorization.

78103264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84202 (or 84194 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 78103264 is about 8837.6051054570. The cubic root of 78103264 is about 427.4543370855.

The spelling of 78103264 in words is "seventy-eight million, one hundred three thousand, two hundred sixty-four".

Divisors: 1 2 4 8 16 29 32 58 116 232 464 928 84163 168326 336652 673304 1346608 2440727 2693216 4881454 9762908 19525816 39051632 78103264