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77074404108 = 223131993247901
BaseRepresentation
bin100011111000111111…
…1100001001100001100
321100221110002101220120
41013301333201030030
52230322021412413
655224003544540
75365655424342
oct1076177411414
9240843071816
1077074404108
112a761545639
1212b3008b150
137363ca18a0
143a323bd992
152011725723
hex11f1fe130c

77074404108 has 48 divisors (see below), whose sum is σ = 193772102496. Its totient is φ = 23703206400.

The previous prime is 77074404107. The next prime is 77074404161. The reversal of 77074404108 is 80140447077.

It is a self number, because there is not a number n which added to its sum of digits gives 77074404108.

It is not an unprimeable number, because it can be changed into a prime (77074404101) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 186958 + ... + 434858.

It is an arithmetic number, because the mean of its divisors is an integer number (4036918802).

Almost surely, 277074404108 is an apocalyptic number.

77074404108 is a gapful number since it is divisible by the number (78) formed by its first and last digit.

It is an amenable number.

77074404108 is an abundant number, since it is smaller than the sum of its proper divisors (116697698388).

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

77074404108 is a wasteful number, since it uses less digits than its factorization.

77074404108 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249914 (or 249912 counting only the distinct ones).

The product of its (nonzero) digits is 175616, while the sum is 42.

The spelling of 77074404108 in words is "seventy-seven billion, seventy-four million, four hundred four thousand, one hundred eight".

Divisors: 1 2 3 4 6 12 13 26 39 52 78 156 1993 3986 5979 7972 11958 23916 25909 51818 77727 103636 155454 247901 310908 495802 743703 991604 1487406 2974812 3222713 6445426 9668139 12890852 19336278 38672556 494066693 988133386 1482200079 1976266772 2964400158 5928800316 6422867009 12845734018 19268601027 25691468036 38537202054 77074404108