Base | Representation |
---|---|
bin | 10001101110111000111001… |
… | …101010010000000111100000 |
3 | 101020010200012100120221000010 |
4 | 101232320321222100013200 |
5 | 40210232414241210034 |
6 | 433511351110324520 |
7 | 22266342500204550 |
oct | 2156707152200740 |
9 | 336120170527003 |
10 | 77988983538144 |
11 | 22938a40047528 |
12 | 88b6954959740 |
13 | 346943915b683 |
14 | 1538988d8b160 |
15 | 903a147193e9 |
hex | 46ee39a901e0 |
77988983538144 has 48 divisors (see below), whose sum is σ = 233966950616448. Its totient is φ = 22282566724992.
The previous prime is 77988983538119. The next prime is 77988983538163. The reversal of 77988983538144 is 44183538988977.
It is a tau number, because it is divible by the number of its divisors (48).
It is a Harshad number since it is a multiple of its sum of digits (84).
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58027516842 + ... + 58027518185.
It is an arithmetic number, because the mean of its divisors is an integer number (4874311471176).
Almost surely, 277988983538144 is an apocalyptic number.
It is an amenable number.
77988983538144 is an abundant number, since it is smaller than the sum of its proper divisors (155977967078304).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
77988983538144 is a wasteful number, since it uses less digits than its factorization.
77988983538144 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 116055035047 (or 116055035039 counting only the distinct ones).
The product of its digits is 11705057280, while the sum is 84.
The spelling of 77988983538144 in words is "seventy-seven trillion, nine hundred eighty-eight billion, nine hundred eighty-three million, five hundred thirty-eight thousand, one hundred forty-four".
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