Base | Representation |
---|---|
bin | 101111110001… |
… | …0110001111110 |
3 | 1202010110211220 |
4 | 1133202301332 |
5 | 22402434032 |
6 | 2252454210 |
7 | 422613552 |
oct | 137426176 |
9 | 52113756 |
10 | 25046142 |
11 | 131575a0 |
12 | 847a366 |
13 | 525c204 |
14 | 347d862 |
15 | 22eb12c |
hex | 17e2c7e |
25046142 has 32 divisors (see below), whose sum is σ = 57525120. Its totient is φ = 7189920.
The previous prime is 25046137. The next prime is 25046143. The reversal of 25046142 is 24164052.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (25046143) 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, 8733 + ... + 11240.
It is an arithmetic number, because the mean of its divisors is an integer number (1797660).
Almost surely, 225046142 is an apocalyptic number.
25046142 is a gapful number since it is divisible by the number (22) formed by its first and last digit.
25046142 is an abundant number, since it is smaller than the sum of its proper divisors (32478978).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
25046142 is a wasteful number, since it uses less digits than its factorization.
25046142 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 20008.
The product of its (nonzero) digits is 1920, while the sum is 24.
The square root of 25046142 is about 5004.6120728784. The cubic root of 25046142 is about 292.5815566281.
It can be divided in two parts, 2504 and 6142, that added together give a triangular number (8646 = T131).
The spelling of 25046142 in words is "twenty-five million, forty-six thousand, one hundred forty-two".
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