Base | Representation |
---|---|
bin | 1010011110010… |
… | …10110111010101 |
3 | 20010022220000121 |
4 | 11033022313111 |
5 | 134443101431 |
6 | 12415111541 |
7 | 2114551411 |
oct | 517126725 |
9 | 203286017 |
10 | 87862741 |
11 | 4566163a |
12 | 255125b1 |
13 | 152841b5 |
14 | b951d41 |
15 | 7aa8611 |
hex | 53cadd5 |
87862741 has 4 divisors (see below), whose sum is σ = 89352000. Its totient is φ = 86373484.
The previous prime is 87862703. The next prime is 87862751. The reversal of 87862741 is 14726878.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 14726878 = 2 ⋅7363439.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-87862741 is a prime.
It is a super-2 number, since 2×878627412 = 15439722512066162, which 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 (87862751) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 744541 + ... + 744658.
It is an arithmetic number, because the mean of its divisors is an integer number (22338000).
Almost surely, 287862741 is an apocalyptic number.
It is an amenable number.
87862741 is a deficient number, since it is larger than the sum of its proper divisors (1489259).
87862741 is a wasteful number, since it uses less digits than its factorization.
87862741 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1489258.
The product of its digits is 150528, while the sum is 43.
The square root of 87862741 is about 9373.5127353623. The cubic root of 87862741 is about 444.5646392256.
The spelling of 87862741 in words is "eighty-seven million, eight hundred sixty-two thousand, seven hundred forty-one".
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