Base | Representation |
---|---|
bin | 1000001010000… |
… | …01100011011111 |
3 | 11202202101202111 |
4 | 10011001203133 |
5 | 120004112301 |
6 | 10442334451 |
7 | 1460416366 |
oct | 405014337 |
9 | 152671674 |
10 | 68425951 |
11 | 35696480 |
12 | 1aaba427 |
13 | 1123a239 |
14 | 91327dd |
15 | 6019551 |
hex | 41418df |
68425951 has 8 divisors (see below), whose sum is σ = 75024000. Its totient is φ = 61890840.
The previous prime is 68425927. The next prime is 68425963. The reversal of 68425951 is 15952486.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 68425951 - 25 = 68425919 is a prime.
It is a super-2 number, since 2×684259512 = 9364221540508802, which contains 22 as substring.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (68425921) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13441 + ... + 17818.
It is an arithmetic number, because the mean of its divisors is an integer number (9378000).
Almost surely, 268425951 is an apocalyptic number.
68425951 is a deficient number, since it is larger than the sum of its proper divisors (6598049).
68425951 is a wasteful number, since it uses less digits than its factorization.
68425951 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 31469.
The product of its digits is 86400, while the sum is 40.
The square root of 68425951 is about 8271.9980053189. The cubic root of 68425951 is about 409.0159844543.
The spelling of 68425951 in words is "sixty-eight million, four hundred twenty-five thousand, nine hundred fifty-one".
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