[go: up one dir, main page]

Search a number
-
+
4026487 = 4198207
BaseRepresentation
bin1111010111000001110111
321120120022011
433113001313
52012321422
6222145051
746140013
oct17270167
97516264
104026487
112300183
121422187
13aac94a
1476b543
15548077
hex3d7077

4026487 has 4 divisors (see below), whose sum is σ = 4124736. Its totient is φ = 3928240.

The previous prime is 4026469. The next prime is 4026493. The reversal of 4026487 is 7846204.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 4026487 - 27 = 4026359 is a prime.

It is a super-2 number, since 2×40264872 = 32425195122338, which contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4026437) 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, 49063 + ... + 49144.

It is an arithmetic number, because the mean of its divisors is an integer number (1031184).

Almost surely, 24026487 is an apocalyptic number.

4026487 is a deficient number, since it is larger than the sum of its proper divisors (98249).

4026487 is an equidigital number, since it uses as much as digits as its factorization.

4026487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98248.

The product of its (nonzero) digits is 10752, while the sum is 31.

The square root of 4026487 is about 2006.6108242507. The cubic root of 4026487 is about 159.0897137523.

It can be divided in two parts, 402 and 6487, that added together give a square (6889 = 832).

The spelling of 4026487 in words is "four million, twenty-six thousand, four hundred eighty-seven".

Divisors: 1 41 98207 4026487