Base | Representation |
---|---|
bin | 111110110001100001… |
… | …101111010000000000 |
3 | 20102222102111011012000 |
4 | 332301201233100000 |
5 | 2101020121432320 |
6 | 50544154304000 |
7 | 4604210242434 |
oct | 766141572000 |
9 | 212872434160 |
10 | 67402920960 |
11 | 26649212161 |
12 | 11091128000 |
13 | 64823880ab |
14 | 3395b349c4 |
15 | 1b4760ac90 |
hex | fb186f400 |
67402920960 has 352 divisors, whose sum is σ = 241198828800. Its totient is φ = 17849548800.
The previous prime is 67402920919. The next prime is 67402920961. The reversal of 67402920960 is 6902920476.
It is a Harshad number since it is a multiple of its sum of digits (45).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (67402920961) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20872626 + ... + 20875854.
Almost surely, 267402920960 is an apocalyptic number.
67402920960 is a gapful number since it is divisible by the number (60) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 67402920960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (120599414400).
67402920960 is an abundant number, since it is smaller than the sum of its proper divisors (173795907840).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
67402920960 is a wasteful number, since it uses less digits than its factorization.
67402920960 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 3414 (or 3390 counting only the distinct ones).
The product of its (nonzero) digits is 326592, while the sum is 45.
The spelling of 67402920960 in words is "sixty-seven billion, four hundred two million, nine hundred twenty thousand, nine hundred sixty".
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