Base | Representation |
---|---|
bin | 1110100110000… |
… | …0111001100110 |
3 | 11021012000020200 |
4 | 3221200321212 |
5 | 111132324220 |
6 | 10024011330 |
7 | 1342212243 |
oct | 351407146 |
9 | 137160220 |
10 | 61214310 |
11 | 31610243 |
12 | 18600b46 |
13 | c8b38b1 |
14 | 81b65ca |
15 | 5592890 |
hex | 3a60e66 |
61214310 has 24 divisors (see below), whose sum is σ = 159157440. Its totient is φ = 16323792.
The previous prime is 61214303. The next prime is 61214323. The reversal of 61214310 is 1341216.
It is a happy number.
61214310 is a `hidden beast` number, since 612 + 1 + 43 + 10 = 666.
61214310 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a super-2 number, since 2×612143102 = 7494383497552200, which contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (18).
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 11 ways as a sum of consecutive naturals, for example, 339990 + ... + 340169.
It is an arithmetic number, because the mean of its divisors is an integer number (6631560).
Almost surely, 261214310 is an apocalyptic number.
61214310 is an abundant number, since it is smaller than the sum of its proper divisors (97943130).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
61214310 is a wasteful number, since it uses less digits than its factorization.
61214310 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 680172 (or 680169 counting only the distinct ones).
The product of its (nonzero) digits is 144, while the sum is 18.
The square root of 61214310 is about 7823.9574385345. The cubic root of 61214310 is about 394.1101798759.
Adding to 61214310 its reverse (1341216), we get a palindrome (62555526).
The spelling of 61214310 in words is "sixty-one million, two hundred fourteen thousand, three hundred ten".
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