Base | Representation |
---|---|
bin | 111100000001… |
… | …1000110010100 |
3 | 2012012211200112 |
4 | 1320003012110 |
5 | 31024014342 |
6 | 3042302152 |
7 | 531330122 |
oct | 170030624 |
9 | 65184615 |
10 | 31469972 |
11 | 16844946 |
12 | a657958 |
13 | 669b0b1 |
14 | 4272912 |
15 | 2b69682 |
hex | 1e03194 |
31469972 has 6 divisors (see below), whose sum is σ = 55072458. Its totient is φ = 15734984.
The previous prime is 31469953. The next prime is 31469987. The reversal of 31469972 is 27996413.
It can be written as a sum of positive squares in only one way, i.e., 29116816 + 2353156 = 5396^2 + 1534^2 .
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3933743 + ... + 3933750.
It is an arithmetic number, because the mean of its divisors is an integer number (9178743).
Almost surely, 231469972 is an apocalyptic number.
It is an amenable number.
31469972 is a deficient number, since it is larger than the sum of its proper divisors (23602486).
31469972 is a wasteful number, since it uses less digits than its factorization.
31469972 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 7867497 (or 7867495 counting only the distinct ones).
The product of its digits is 81648, while the sum is 41.
The square root of 31469972 is about 5609.8103354748. The cubic root of 31469972 is about 315.7175947262.
The spelling of 31469972 in words is "thirty-one million, four hundred sixty-nine thousand, nine hundred seventy-two".
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