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78063144 = 2333252631
BaseRepresentation
bin1001010011100…
…10011000101000
312102220000111120
410221302120220
5124441010034
611425055240
71635345225
oct451623050
9172800446
1078063144
1140078aa5
1222187520
1313232913
14a52094c
156cbec49
hex4a72628

78063144 has 16 divisors (see below), whose sum is σ = 195157920. Its totient is φ = 26021040.

The previous prime is 78063137. The next prime is 78063149. The reversal of 78063144 is 44136087.

It is not an unprimeable number, because it can be changed into a prime (78063149) 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 3 ways as a sum of consecutive naturals, for example, 1626292 + ... + 1626339.

It is an arithmetic number, because the mean of its divisors is an integer number (12197370).

Almost surely, 278063144 is an apocalyptic number.

It is an amenable number.

78063144 is an abundant number, since it is smaller than the sum of its proper divisors (117094776).

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

78063144 is a wasteful number, since it uses less digits than its factorization.

78063144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3252640 (or 3252636 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 33.

The square root of 78063144 is about 8835.3349681832. The cubic root of 78063144 is about 427.3811331228.

The spelling of 78063144 in words is "seventy-eight million, sixty-three thousand, one hundred forty-four".

Divisors: 1 2 3 4 6 8 12 24 3252631 6505262 9757893 13010524 19515786 26021048 39031572 78063144