Base | Representation |
---|---|
bin | 111110110000101000… |
… | …110011111011001101 |
3 | 20102221101101222121010 |
4 | 332300220303323031 |
5 | 2101002311413101 |
6 | 50542502355433 |
7 | 4603636350120 |
oct | 766050637315 |
9 | 212841358533 |
10 | 67387997901 |
11 | 2664084a254 |
12 | 1108812bb79 |
13 | 647c261793 |
14 | 3393b6c3b7 |
15 | 1b4615e2d6 |
hex | fb0a33ecd |
67387997901 has 16 divisors (see below), whose sum is σ = 104132763648. Its totient is φ = 37965068400.
The previous prime is 67387997899. The next prime is 67387997903. The reversal of 67387997901 is 10979978376.
It is an interprime number because it is at equal distance from previous prime (67387997899) and next prime (67387997903).
It is not a de Polignac number, because 67387997901 - 21 = 67387997899 is a prime.
It is a super-2 number, since 2×673879979012 (a number of 22 digits) contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (67387997903) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22596765 + ... + 22599746.
It is an arithmetic number, because the mean of its divisors is an integer number (6508297728).
Almost surely, 267387997901 is an apocalyptic number.
It is an amenable number.
67387997901 is a deficient number, since it is larger than the sum of its proper divisors (36744765747).
67387997901 is a wasteful number, since it uses less digits than its factorization.
67387997901 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 45196592.
The product of its (nonzero) digits is 36006768, while the sum is 66.
The spelling of 67387997901 in words is "sixty-seven billion, three hundred eighty-seven million, nine hundred ninety-seven thousand, nine hundred one".
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