Base | Representation |
---|---|
bin | 11101000101100101… |
… | …000000101010101000 |
3 | 2222121121201010020200 |
4 | 131011211000222220 |
5 | 1002430404213112 |
6 | 22203044152200 |
7 | 2153650323066 |
oct | 350545005250 |
9 | 88547633220 |
10 | 31232101032 |
11 | 12277785850 |
12 | 6077698660 |
13 | 2c39718972 |
14 | 1723d33036 |
15 | c2bda5cdc |
hex | 745940aa8 |
31232101032 has 48 divisors (see below), whose sum is σ = 92276664480. Its totient is φ = 9464272800.
The previous prime is 31232101009. The next prime is 31232101039. The reversal of 31232101032 is 23010123213.
31232101032 is a `hidden beast` number, since 312 + 321 + 0 + 1 + 0 + 32 = 666.
It is a Harshad number since it is a multiple of its sum of digits (18).
It is a junction number, because it is equal to n+sod(n) for n = 31232100996 and 31232101014.
It is not an unprimeable number, because it can be changed into a prime (31232101039) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19716444 + ... + 19718027.
It is an arithmetic number, because the mean of its divisors is an integer number (1922430510).
Almost surely, 231232101032 is an apocalyptic number.
It is an amenable number.
31232101032 is an abundant number, since it is smaller than the sum of its proper divisors (61044563448).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
31232101032 is a wasteful number, since it uses less digits than its factorization.
31232101032 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 39434494 (or 39434487 counting only the distinct ones).
The product of its (nonzero) digits is 216, while the sum is 18.
Adding to 31232101032 its reverse (23010123213), we get a palindrome (54242224245).
The spelling of 31232101032 in words is "thirty-one billion, two hundred thirty-two million, one hundred one thousand, thirty-two".
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