Base | Representation |
---|---|
bin | 11110110111100011011… |
… | …011101101000111111100 |
3 | 21111210021111001222221021 |
4 | 132313203123231013330 |
5 | 234223242022131201 |
6 | 4302252014313524 |
7 | 306153112220110 |
oct | 36674333550774 |
9 | 7453244058837 |
10 | 2121234567676 |
11 | 748679681974 |
12 | 2a31391b88a4 |
13 | 125054456c53 |
14 | 7494db63740 |
15 | 3a2a154aea1 |
hex | 1ede36ed1fc |
2121234567676 has 48 divisors (see below), whose sum is σ = 4306107359232. Its totient is φ = 895465771200.
The previous prime is 2121234567671. The next prime is 2121234567691. The reversal of 2121234567676 is 6767654321212.
2121234567676 is an esthetic number in base 10, because in such base its adjacent digits differ by 1.
It is a super-2 number, since 2×21212345676762 (a number of 25 digits) contains 22 as substring.
It is an alternating number because its digits alternate between even and odd.
It is a pancake number, because a pancake can be divided into 2121234567676 parts by 2059725 straight cuts.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (2121234567671) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31898181 + ... + 31964611.
It is an arithmetic number, because the mean of its divisors is an integer number (89710569984).
Almost surely, 22121234567676 is an apocalyptic number.
It is an amenable number.
2121234567676 is an abundant number, since it is smaller than the sum of its proper divisors (2184872791556).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2121234567676 is a wasteful number, since it uses less digits than its factorization.
2121234567676 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 83530 (or 83528 counting only the distinct ones).
The product of its digits is 5080320, while the sum is 52.
Adding to 2121234567676 its reverse (6767654321212), we get a palindrome (8888888888888).
The spelling of 2121234567676 in words is "two trillion, one hundred twenty-one billion, two hundred thirty-four million, five hundred sixty-seven thousand, six hundred seventy-six".
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