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78625532742 = 2313104255457
BaseRepresentation
bin100100100111001110…
…0100110101101000110
321111221112210220101020
41021032130212231012
52242011114021432
6100041534012010
75452262000301
oct1111634465506
9244845726336
1078625532742
1130388077529
12132a3647006
137550455b93
143b3c3d1b38
1520a29be22c
hex124e726b46

78625532742 has 8 divisors (see below), whose sum is σ = 157251065496. Its totient is φ = 26208510912.

The previous prime is 78625532731. The next prime is 78625532747. The reversal of 78625532742 is 24723552687.

It is a sphenic number, since it is the product of 3 distinct primes.

78625532742 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78625532747) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6552127723 + ... + 6552127734.

It is an arithmetic number, because the mean of its divisors is an integer number (19656383187).

Almost surely, 278625532742 is an apocalyptic number.

78625532742 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

78625532742 is a wasteful number, since it uses less digits than its factorization.

78625532742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13104255462.

The product of its digits is 5644800, while the sum is 51.

The spelling of 78625532742 in words is "seventy-eight billion, six hundred twenty-five million, five hundred thirty-two thousand, seven hundred forty-two".

Divisors: 1 2 3 6 13104255457 26208510914 39312766371 78625532742