Base | Representation |
---|---|
bin | 10001101001111110111… |
… | …111011010101110000010 |
3 | 11021222202202022210120012 |
4 | 101221332333122232002 |
5 | 124334330200044302 |
6 | 2325215412344522 |
7 | 153441662102555 |
oct | 21517677325602 |
9 | 4258682283505 |
10 | 1213311331202 |
11 | 428620685263 |
12 | 177193615142 |
13 | 8a551323c49 |
14 | 42a2037669c |
15 | 21863638a52 |
hex | 11a7efdab82 |
1213311331202 has 8 divisors (see below), whose sum is σ = 1899095996736. Its totient is φ = 580279332292.
The previous prime is 1213311331201. The next prime is 1213311331279. The reversal of 1213311331202 is 2021331133121.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a super-3 number, since 3×12133113312023 (a number of 37 digits) contains 333 as substring.
It is a Harshad number since it is a multiple of its sum of digits (23).
It is not an unprimeable number, because it can be changed into a prime (1213311331201) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13188166598 + ... + 13188166689.
It is an arithmetic number, because the mean of its divisors is an integer number (237386999592).
Almost surely, 21213311331202 is an apocalyptic number.
1213311331202 is a deficient number, since it is larger than the sum of its proper divisors (685784665534).
1213311331202 is a wasteful number, since it uses less digits than its factorization.
1213311331202 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 26376333312.
The product of its (nonzero) digits is 648, while the sum is 23.
Adding to 1213311331202 its reverse (2021331133121), we get a palindrome (3234642464323).
The spelling of 1213311331202 in words is "one trillion, two hundred thirteen billion, three hundred eleven million, three hundred thirty-one thousand, two hundred two".
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