Base | Representation |
---|---|
bin | 1001100101100… |
… | …01011000101001 |
3 | 12121022200020020 |
4 | 10302301120221 |
5 | 131041341340 |
6 | 11551351053 |
7 | 1664354550 |
oct | 462613051 |
9 | 177280206 |
10 | 80418345 |
11 | 41437547 |
12 | 22b22489 |
13 | 13878927 |
14 | a974d97 |
15 | 70d79d0 |
hex | 4cb1629 |
80418345 has 16 divisors (see below), whose sum is σ = 147050880. Its totient is φ = 36762624.
The previous prime is 80418329. The next prime is 80418361. The reversal of 80418345 is 54381408.
It is an interprime number because it is at equal distance from previous prime (80418329) and next prime (80418361).
It is not a de Polignac number, because 80418345 - 24 = 80418329 is a prime.
It is a super-2 number, since 2×804183452 = 12934220425078050, which contains 22 as substring.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 382840 + ... + 383049.
It is an arithmetic number, because the mean of its divisors is an integer number (9190680).
Almost surely, 280418345 is an apocalyptic number.
It is an amenable number.
80418345 is a deficient number, since it is larger than the sum of its proper divisors (66632535).
80418345 is a wasteful number, since it uses less digits than its factorization.
80418345 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 765904.
The product of its (nonzero) digits is 15360, while the sum is 33.
The square root of 80418345 is about 8967.6276126967. The cubic root of 80418345 is about 431.6367134016.
The spelling of 80418345 in words is "eighty million, four hundred eighteen thousand, three hundred forty-five".
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