Base | Representation |
---|---|
bin | 10101101101011101… |
… | …010010100011111110 |
3 | 2020011121012020120110 |
4 | 111231131102203332 |
5 | 340220133344410 |
6 | 14413052330450 |
7 | 1453450124160 |
oct | 255535224376 |
9 | 66147166513 |
10 | 23311231230 |
11 | 9982645061 |
12 | 4626a73a26 |
13 | 22766c0061 |
14 | 11b1d86930 |
15 | 9167db720 |
hex | 56d7528fe |
23311231230 has 64 divisors (see below), whose sum is σ = 64427539968. Its totient is φ = 5287601280.
The previous prime is 23311231217. The next prime is 23311231289. The reversal of 23311231230 is 3213211332.
It is a Harshad number since it is a multiple of its sum of digits (21).
It is a junction number, because it is equal to n+sod(n) for n = 23311231197 and 23311231206.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 396177 + ... + 451196.
It is an arithmetic number, because the mean of its divisors is an integer number (1006680312).
Almost surely, 223311231230 is an apocalyptic number.
23311231230 is an abundant number, since it is smaller than the sum of its proper divisors (41116308738).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
23311231230 is a wasteful number, since it uses less digits than its factorization.
23311231230 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 847521.
The product of its (nonzero) digits is 648, while the sum is 21.
Adding to 23311231230 its reverse (3213211332), we get a palindrome (26524442562).
It can be divided in two parts, 23311 and 231230, that added together give a triangular number (254541 = T713).
The spelling of 23311231230 in words is "twenty-three billion, three hundred eleven million, two hundred thirty-one thousand, two hundred thirty".
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