Base | Representation |
---|---|
bin | 1110110111010100… |
… | …11101000000000000 |
3 | 202121011100120101220 |
4 | 13123222131000000 |
5 | 112320424301212 |
6 | 3355513355040 |
7 | 401521325340 |
oct | 73352350000 |
9 | 22534316356 |
10 | 7980306432 |
11 | 342574737a |
12 | 1668708a80 |
13 | 9a2439317 |
14 | 559c1cd20 |
15 | 31a90a38c |
hex | 1dba9d000 |
7980306432 has 312 divisors, whose sum is σ = 25765085376. Its totient is φ = 2151677952.
The previous prime is 7980306401. The next prime is 7980306443. The reversal of 7980306432 is 2346030897.
It is a Harshad number since it is a multiple of its sum of digits (42).
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 31051648 + ... + 31051904.
Almost surely, 27980306432 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 7980306432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12882542688).
7980306432 is an abundant number, since it is smaller than the sum of its proper divisors (17784778944).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
7980306432 is a wasteful number, since it uses less digits than its factorization.
7980306432 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 329 (or 288 counting only the distinct ones).
The product of its (nonzero) digits is 217728, while the sum is 42.
The square root of 7980306432 is about 89332.5608722822. The cubic root of 7980306432 is about 1998.3575208337.
The spelling of 7980306432 in words is "seven billion, nine hundred eighty million, three hundred six thousand, four hundred thirty-two".
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