Base | Representation |
---|---|
bin | 101111001000101011… |
… | …1111100100010110111 |
3 | 100200021102100102121011 |
4 | 1132101113330202313 |
5 | 3124301121041211 |
6 | 114300140533051 |
7 | 10212256120513 |
oct | 1362127744267 |
9 | 320242312534 |
10 | 101223221431 |
11 | 39a23962502 |
12 | 1774b551187 |
13 | 97120746c7 |
14 | 4c836b7143 |
15 | 2976810921 |
hex | 17915fc8b7 |
101223221431 has 8 divisors (see below), whose sum is σ = 107218940544. Its totient is φ = 95232103680.
The previous prime is 101223221399. The next prime is 101223221441. The reversal of 101223221431 is 134122322101.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 101223221431 - 25 = 101223221399 is a prime.
It is a super-2 number, since 2×1012232214312 (a number of 23 digits) contains 22 as substring.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (101223221441) 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, 1104990 + ... + 1193083.
It is an arithmetic number, because the mean of its divisors is an integer number (13402367568).
Almost surely, 2101223221431 is an apocalyptic number.
101223221431 is a deficient number, since it is larger than the sum of its proper divisors (5995719113).
101223221431 is a wasteful number, since it uses less digits than its factorization.
101223221431 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2300681.
The product of its (nonzero) digits is 576, while the sum is 22.
Adding to 101223221431 its reverse (134122322101), we get a palindrome (235345543532).
The spelling of 101223221431 in words is "one hundred one billion, two hundred twenty-three million, two hundred twenty-one thousand, four hundred thirty-one".
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