Search a number
-
+
78304054 = 2197129023
BaseRepresentation
bin1001010101011…
…01001100110110
312110100020222011
410222231030312
5130021212204
611434154434
71640400463
oct452551466
9173306864
1078304054
1140222aa4
1222282a1a
13132b847a
14a58466a
156d1b304
hex4aad336

78304054 has 16 divisors (see below), whose sum is σ = 125383680. Its totient is φ = 36567720.

The previous prime is 78304049. The next prime is 78304067. The reversal of 78304054 is 45040387.

It is a super-2 number, since 2×783040542 = 12263049745669832, 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 7 ways as a sum of consecutive naturals, for example, 11814 + ... + 17209.

It is an arithmetic number, because the mean of its divisors is an integer number (7836480).

Almost surely, 278304054 is an apocalyptic number.

78304054 is a deficient number, since it is larger than the sum of its proper divisors (47079626).

78304054 is a wasteful number, since it uses less digits than its factorization.

78304054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29115.

The product of its (nonzero) digits is 13440, while the sum is 31.

The square root of 78304054 is about 8848.9577917402. The cubic root of 78304054 is about 427.8203273856.

The spelling of 78304054 in words is "seventy-eight million, three hundred four thousand, fifty-four".

Divisors: 1 2 19 38 71 142 1349 2698 29023 58046 551437 1102874 2060633 4121266 39152027 78304054