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74830308678 = 2331385746457
BaseRepresentation
bin100010110110000111…
…0111110010101000110
321011011001102112201000
41011230032332111012
52211223024334203
654213201114130
75256236062146
oct1055416762506
9234131375630
1074830308678
112980a838514
1212604628946
1370970a1578
14389c344926
151e2e6e84a3
hex116c3be546

74830308678 has 16 divisors (see below), whose sum is σ = 166289574960. Its totient is φ = 24943436208.

The previous prime is 74830308667. The next prime is 74830308697. The reversal of 74830308678 is 87680303847.

It is a Harshad number since it is a multiple of its sum of digits (54), and also a Moran number because the ratio is a prime number: 1385746457 = 74830308678 / (7 + 4 + 8 + 3 + 0 + 3 + 0 + 8 + 6 + 7 + 8).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 692873175 + ... + 692873282.

It is an arithmetic number, because the mean of its divisors is an integer number (10393098435).

Almost surely, 274830308678 is an apocalyptic number.

74830308678 is an abundant number, since it is smaller than the sum of its proper divisors (91459266282).

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

74830308678 is a wasteful number, since it uses less digits than its factorization.

74830308678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1385746468 (or 1385746462 counting only the distinct ones).

The product of its (nonzero) digits is 5419008, while the sum is 54.

The spelling of 74830308678 in words is "seventy-four billion, eight hundred thirty million, three hundred eight thousand, six hundred seventy-eight".

Divisors: 1 2 3 6 9 18 27 54 1385746457 2771492914 4157239371 8314478742 12471718113 24943436226 37415154339 74830308678