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74680801540 = 22520271842151
BaseRepresentation
bin100010110001101010…
…0101001100100000100
321010202122002210110121
41011203110221210010
52210421241122130
654150300431324
75252442224242
oct1054324514404
9233678083417
1074680801540
11297434025a4
1212582548544
137072115ac7
143886547792
151e21514d7a
hex1163529904

74680801540 has 24 divisors (see below), whose sum is σ = 156907138752. Its totient is φ = 29857567200.

The previous prime is 74680801513. The next prime is 74680801549. The reversal of 74680801540 is 4510808647.

It is not an unprimeable number, because it can be changed into a prime (74680801549) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 880536 + ... + 961615.

It is an arithmetic number, because the mean of its divisors is an integer number (6537797448).

Almost surely, 274680801540 is an apocalyptic number.

It is an amenable number.

74680801540 is an abundant number, since it is smaller than the sum of its proper divisors (82226337212).

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

74680801540 is a wasteful number, since it uses less digits than its factorization.

74680801540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1844187 (or 1844185 counting only the distinct ones).

The product of its (nonzero) digits is 215040, while the sum is 43.

The spelling of 74680801540 in words is "seventy-four billion, six hundred eighty million, eight hundred one thousand, five hundred forty".

Divisors: 1 2 4 5 10 20 2027 4054 8108 10135 20270 40540 1842151 3684302 7368604 9210755 18421510 36843020 3734040077 7468080154 14936160308 18670200385 37340400770 74680801540