Base | Representation |
---|---|
bin | 101010111100001101111 |
3 | 2122111011100 |
4 | 11113201233 |
5 | 330011322 |
6 | 50054143 |
7 | 14650203 |
oct | 5274157 |
9 | 2574140 |
10 | 1407087 |
11 | 881190 |
12 | 57a353 |
13 | 3a35c6 |
14 | 288b03 |
15 | 1cbdac |
hex | 15786f |
1407087 has 24 divisors (see below), whose sum is σ = 2263248. Its totient is φ = 835200.
The previous prime is 1407061. The next prime is 1407101. The reversal of 1407087 is 7807041.
It is not a de Polignac number, because 1407087 - 26 = 1407023 is a prime.
It is an Ulam number.
It is a self number, because there is not a number n which added to its sum of digits gives 1407087.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1407017) by changing a digit.
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 23 ways as a sum of consecutive naturals, for example, 5923 + ... + 6155.
It is an arithmetic number, because the mean of its divisors is an integer number (94302).
21407087 is an apocalyptic number.
1407087 is a deficient number, since it is larger than the sum of its proper divisors (856161).
1407087 is a wasteful number, since it uses less digits than its factorization.
1407087 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 311 (or 308 counting only the distinct ones).
The product of its (nonzero) digits is 1568, while the sum is 27.
The square root of 1407087 is about 1186.2069802526. The cubic root of 1407087 is about 112.0573420229.
It can be divided in two parts, 140708 and 7, that added together give a triangular number (140715 = T530).
The spelling of 1407087 in words is "one million, four hundred seven thousand, eighty-seven".
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