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78058130 = 2529326641
BaseRepresentation
bin1001010011100…
…01001010010010
312102212202121212
410221301022102
5124440330010
611425020122
71635324503
oct451611222
9172782555
1078058130
1140075257
1222184642
1313230557
14a51cbaa
156cbd505
hex4a71292

78058130 has 16 divisors (see below), whose sum is σ = 140989464. Its totient is φ = 31115520.

The previous prime is 78058129. The next prime is 78058133. The reversal of 78058130 is 3185087.

It can be written as a sum of positive squares in 4 ways, for example, as 62995969 + 15062161 = 7937^2 + 3881^2 .

It is not an unprimeable number, because it can be changed into a prime (78058133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10391 + ... + 16250.

Almost surely, 278058130 is an apocalyptic number.

78058130 is a deficient number, since it is larger than the sum of its proper divisors (62931334).

78058130 is a wasteful number, since it uses less digits than its factorization.

78058130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26941.

The product of its (nonzero) digits is 6720, while the sum is 32.

The square root of 78058130 is about 8835.0512166031. The cubic root of 78058130 is about 427.3719826890.

The spelling of 78058130 in words is "seventy-eight million, fifty-eight thousand, one hundred thirty".

Divisors: 1 2 5 10 293 586 1465 2930 26641 53282 133205 266410 7805813 15611626 39029065 78058130