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78094872 = 23321763803
BaseRepresentation
bin1001010011110…
…10001000011000
312102221122000200
410221322020120
5124443013442
611425502200
71635536562
oct451721030
9172848020
1078094872
114009a919
12221a1960
13132441ab
14a52c332
156cc934c
hex4a7a218

78094872 has 48 divisors (see below), whose sum is σ = 223952040. Its totient is φ = 24499968.

The previous prime is 78094853. The next prime is 78094931. The reversal of 78094872 is 27849087.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 30678 + ... + 33125.

Almost surely, 278094872 is an apocalyptic number.

78094872 is a gapful number since it is divisible by the number (72) formed by its first and last digit.

It is an amenable number.

78094872 is an abundant number, since it is smaller than the sum of its proper divisors (145857168).

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

78094872 is a wasteful number, since it uses less digits than its factorization.

78094872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63832 (or 63825 counting only the distinct ones).

The product of its (nonzero) digits is 225792, while the sum is 45.

The square root of 78094872 is about 8837.1303034413. The cubic root of 78094872 is about 427.4390269047.

The spelling of 78094872 in words is "seventy-eight million, ninety-four thousand, eight hundred seventy-two".

Divisors: 1 2 3 4 6 8 9 12 17 18 24 34 36 51 68 72 102 136 153 204 306 408 612 1224 63803 127606 191409 255212 382818 510424 574227 765636 1084651 1148454 1531272 2169302 2296908 3253953 4338604 4593816 6507906 8677208 9761859 13015812 19523718 26031624 39047436 78094872