Search a number
-
+
210029087 = 2081100927
BaseRepresentation
bin11001000010011…
…00101000011111
3112122012120202002
430201030220133
5412231412322
632501352515
75130134462
oct1441145037
9478176662
10210029087
11a8612a64
125a40873b
1334689188
141dc732d9
151368ac92
hexc84ca1f

210029087 has 4 divisors (see below), whose sum is σ = 210132096. Its totient is φ = 209926080.

The previous prime is 210029081. The next prime is 210029117. The reversal of 210029087 is 780920012.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-210029087 is a prime.

It is a super-2 number, since 2×2100290872 = 88224434772107138, 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 (210029081) 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 3 ways as a sum of consecutive naturals, for example, 48383 + ... + 52544.

It is an arithmetic number, because the mean of its divisors is an integer number (52533024).

Almost surely, 2210029087 is an apocalyptic number.

210029087 is a deficient number, since it is larger than the sum of its proper divisors (103009).

210029087 is a wasteful number, since it uses less digits than its factorization.

210029087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103008.

The product of its (nonzero) digits is 2016, while the sum is 29.

The square root of 210029087 is about 14492.3803082861. The cubic root of 210029087 is about 594.4196370027.

Adding to 210029087 its reverse (780920012), we get a palindrome (990949099).

The spelling of 210029087 in words is "two hundred ten million, twenty-nine thousand, eighty-seven".

Divisors: 1 2081 100927 210029087