Base | Representation |
---|---|
bin | 111111001111111000… |
… | …000111000011001010 |
3 | 20111021220121020101101 |
4 | 333033320013003022 |
5 | 2103040444231330 |
6 | 51110504012014 |
7 | 4622632225510 |
oct | 771770070312 |
9 | 214256536341 |
10 | 67912102090 |
11 | 2688a67a508 |
12 | 111b376100a |
13 | 6533a060c1 |
14 | 34035da4b0 |
15 | 1b771894ca |
hex | fcfe070ca |
67912102090 has 16 divisors (see below), whose sum is σ = 139704895872. Its totient is φ = 23284149264.
The previous prime is 67912102087. The next prime is 67912102109. The reversal of 67912102090 is 9020121976.
It is a super-2 number, since 2×679121020902 (a number of 22 digits) contains 22 as substring.
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, 485086374 + ... + 485086513.
It is an arithmetic number, because the mean of its divisors is an integer number (8731555992).
Almost surely, 267912102090 is an apocalyptic number.
67912102090 is an abundant number, since it is smaller than the sum of its proper divisors (71792793782).
67912102090 is a wasteful number, since it uses less digits than its factorization.
67912102090 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 970172901.
The product of its (nonzero) digits is 13608, while the sum is 37.
The spelling of 67912102090 in words is "sixty-seven billion, nine hundred twelve million, one hundred two thousand, ninety".
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