Base | Representation |
---|---|
bin | 110001011001… |
… | …111101101000 |
3 | 220100222222111 |
4 | 301121331220 |
5 | 11303421100 |
6 | 1141332104 |
7 | 215041120 |
oct | 61317550 |
9 | 26328874 |
10 | 12951400 |
11 | 7346640 |
12 | 4407034 |
13 | 28b6067 |
14 | 1a11c80 |
15 | 120c6ba |
hex | c59f68 |
12951400 has 144 divisors (see below), whose sum is σ = 38881440. Its totient is φ = 3897600.
The previous prime is 12951383. The next prime is 12951431. The reversal of 12951400 is 415921.
It is a Harshad number since it is a multiple of its sum of digits (22).
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 446586 + ... + 446614.
It is an arithmetic number, because the mean of its divisors is an integer number (270010).
It is a vampire number, since it can be written as 1400 ⋅ 9251 (with its own digits).
Almost surely, 212951400 is an apocalyptic number.
12951400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 12951400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19440720).
12951400 is an abundant number, since it is smaller than the sum of its proper divisors (25930040).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12951400 is a wasteful number, since it uses less digits than its factorization.
12951400 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 92 (or 54 counting only the distinct ones).
The product of its (nonzero) digits is 360, while the sum is 22.
The square root of 12951400 is about 3598.8053573373. The cubic root of 12951400 is about 234.8400903967.
It can be divided in two parts, 129 and 51400, that added together give a square (51529 = 2272).
The spelling of 12951400 in words is "twelve million, nine hundred fifty-one thousand, four hundred".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.073 sec. • engine limits •