Base | Representation |
---|---|
bin | 10111101010001000… |
… | …01110111000000101 |
3 | 1012210012001010100022 |
4 | 23311010032320011 |
5 | 202003033241041 |
6 | 5500204224525 |
7 | 626516434343 |
oct | 136504167005 |
9 | 35705033308 |
10 | 12701462021 |
11 | 542870a456 |
12 | 256583b145 |
13 | 1275596501 |
14 | 886c56993 |
15 | 4e513124b |
hex | 2f510ee05 |
12701462021 has 8 divisors (see below), whose sum is σ = 13174681080. Its totient is φ = 12230592192.
The previous prime is 12701461999. The next prime is 12701462023. The reversal of 12701462021 is 12026410721.
It can be written as a sum of positive squares in 4 ways, for example, as 222337921 + 12479124100 = 14911^2 + 111710^2 .
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 12701462021 - 218 = 12701199877 is a prime.
It is a super-2 number, since 2×127014620212 (a number of 21 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 (12701462023) 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, 576290 + ... + 597923.
It is an arithmetic number, because the mean of its divisors is an integer number (1646835135).
Almost surely, 212701462021 is an apocalyptic number.
It is an amenable number.
12701462021 is a deficient number, since it is larger than the sum of its proper divisors (473219059).
12701462021 is a wasteful number, since it uses less digits than its factorization.
12701462021 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1174615.
The product of its (nonzero) digits is 1344, while the sum is 26.
Adding to 12701462021 its reverse (12026410721), we get a palindrome (24727872742).
The spelling of 12701462021 in words is "twelve billion, seven hundred one million, four hundred sixty-two thousand, twenty-one".
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