Base | Representation |
---|---|
bin | 10101111100010… |
… | …001100001110100 |
3 | 221122200112102010 |
4 | 111330101201310 |
5 | 1223214400342 |
6 | 100310044220 |
7 | 12056661621 |
oct | 2574214164 |
9 | 848615363 |
10 | 368121972 |
11 | 179882539 |
12 | a3349670 |
13 | 5b35c86a |
14 | 36c67348 |
15 | 224b829c |
hex | 15f11874 |
368121972 has 24 divisors (see below), whose sum is σ = 867458592. Its totient is φ = 121492000.
The previous prime is 368121967. The next prime is 368121973. The reversal of 368121972 is 279121863.
It is a self number, because there is not a number n which added to its sum of digits gives 368121972.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (368121973) 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, 150654 + ... + 153077.
It is an arithmetic number, because the mean of its divisors is an integer number (36144108).
Almost surely, 2368121972 is an apocalyptic number.
It is an amenable number.
368121972 is an abundant number, since it is smaller than the sum of its proper divisors (499336620).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
368121972 is a wasteful number, since it uses less digits than its factorization.
368121972 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 303839 (or 303837 counting only the distinct ones).
The product of its digits is 36288, while the sum is 39.
The square root of 368121972 is about 19186.5049448825. The cubic root of 368121972 is about 716.6887378336.
The spelling of 368121972 in words is "three hundred sixty-eight million, one hundred twenty-one thousand, nine hundred seventy-two".
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