Base | Representation |
---|---|
bin | 1111101110000… |
… | …10000101111001 |
3 | 100012010112112000 |
4 | 13313002011321 |
5 | 232224221001 |
6 | 21030211213 |
7 | 3160564620 |
oct | 767020571 |
9 | 305115460 |
10 | 131867001 |
11 | 684876a2 |
12 | 381b3b09 |
13 | 21420516 |
14 | 137286b7 |
15 | b89ba86 |
hex | 7dc2179 |
131867001 has 64 divisors (see below), whose sum is σ = 232742400. Its totient is φ = 72223488.
The previous prime is 131866991. The next prime is 131867009. The reversal of 131867001 is 100768131.
It is not a de Polignac number, because 131867001 - 27 = 131866873 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (27).
It is not an unprimeable number, because it can be changed into a prime (131867009) by changing a digit.
It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 762151 + ... + 762323.
It is an arithmetic number, because the mean of its divisors is an integer number (3636600).
Almost surely, 2131867001 is an apocalyptic number.
It is an amenable number.
131867001 is a deficient number, since it is larger than the sum of its proper divisors (100875399).
131867001 is a wasteful number, since it uses less digits than its factorization.
131867001 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 335 (or 329 counting only the distinct ones).
The product of its (nonzero) digits is 1008, while the sum is 27.
The square root of 131867001 is about 11483.3357958391. The cubic root of 131867001 is about 508.9932735720.
The spelling of 131867001 in words is "one hundred thirty-one million, eight hundred sixty-seven thousand, one".
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