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307026 = 23237461
BaseRepresentation
bin1001010111101010010
3120121011100
41022331102
534311101
610325230
72416056
oct1127522
9517140
10307026
1119a745
12129816
13a9995
147dc66
1560e86
hex4af52

307026 has 24 divisors (see below), whose sum is σ = 684684. Its totient is φ = 99360.

The previous prime is 307019. The next prime is 307031. The reversal of 307026 is 620703.

It can be written as a sum of positive squares in 2 ways, for example, as 301401 + 5625 = 549^2 + 75^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a nialpdrome in base 13.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 307026.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 436 + ... + 896.

2307026 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 307026, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (342342).

307026 is an abundant number, since it is smaller than the sum of its proper divisors (377658).

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

307026 is a wasteful number, since it uses less digits than its factorization.

307026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 506 (or 503 counting only the distinct ones).

The product of its (nonzero) digits is 252, while the sum is 18.

The square root of 307026 is about 554.0992690845. The cubic root of 307026 is about 67.4618714706.

Adding to 307026 its reverse (620703), we get a palindrome (927729).

It can be divided in two parts, 30 and 7026, that added together give a square (7056 = 842).

The spelling of 307026 in words is "three hundred seven thousand, twenty-six".

Divisors: 1 2 3 6 9 18 37 74 111 222 333 461 666 922 1383 2766 4149 8298 17057 34114 51171 102342 153513 307026