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690082002 = 23238337889
BaseRepresentation
bin101001001000011…
…101000011010010
31210002111210112200
4221020131003102
52403130111002
6152250504030
723046412611
oct5110350322
91702453480
10690082002
11324595905
12173135016
13acc78c5c
1467915878
15408b3b1c
hex2921d0d2

690082002 has 12 divisors (see below), whose sum is σ = 1495177710. Its totient is φ = 230027328.

The previous prime is 690081991. The next prime is 690082007. The reversal of 690082002 is 200280096.

It can be written as a sum of positive squares in only one way, i.e., 456634161 + 233447841 = 21369^2 + 15279^2 .

It is not an unprimeable number, because it can be changed into a prime (690082007) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 19168927 + ... + 19168962.

Almost surely, 2690082002 is an apocalyptic number.

690082002 is an abundant number, since it is smaller than the sum of its proper divisors (805095708).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

690082002 is a wasteful number, since it uses less digits than its factorization.

690082002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38337897 (or 38337894 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 690082002 is about 26269.4119081490. The cubic root of 690082002 is about 883.6905964218.

The spelling of 690082002 in words is "six hundred ninety million, eighty-two thousand, two".

Divisors: 1 2 3 6 9 18 38337889 76675778 115013667 230027334 345041001 690082002