Search a number
-
+
690095 = 5719717
BaseRepresentation
bin10101000011110101111
31022001122002
42220132233
5134040340
622442515
75602640
oct2503657
91261562
10690095
1143152a
1229343b
131b2153
1413d6c7
15d9715
hexa87af

690095 has 8 divisors (see below), whose sum is σ = 946464. Its totient is φ = 473184.

The previous prime is 690089. The next prime is 690103. The reversal of 690095 is 590096.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 690095 - 210 = 689071 is a prime.

It is a super-2 number, since 2×6900952 = 952462218050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9824 + ... + 9893.

It is an arithmetic number, because the mean of its divisors is an integer number (118308).

2690095 is an apocalyptic number.

690095 is a deficient number, since it is larger than the sum of its proper divisors (256369).

690095 is a wasteful number, since it uses less digits than its factorization.

690095 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19729.

The product of its (nonzero) digits is 2430, while the sum is 29.

The square root of 690095 is about 830.7195676039. The cubic root of 690095 is about 88.3696144621.

Subtracting from 690095 its reverse (590096), we obtain a palindrome (99999).

The spelling of 690095 in words is "six hundred ninety thousand, ninety-five".

Divisors: 1 5 7 35 19717 98585 138019 690095