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309034 = 21121277
BaseRepresentation
bin1001011011100101010
3120200220201
41023130222
534342114
610342414
72424655
oct1133452
9520821
10309034
111a1200
1212aa0a
13aa87b
148089c
1561874
hex4b72a

309034 has 12 divisors (see below), whose sum is σ = 509922. Its totient is φ = 140360.

The previous prime is 309031. The next prime is 309037. The reversal of 309034 is 430903.

It is an interprime number because it is at equal distance from previous prime (309031) and next prime (309037).

It can be written as a sum of positive squares in only one way, i.e., 245025 + 64009 = 495^2 + 253^2 .

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (309031) 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, 397 + ... + 880.

2309034 is an apocalyptic number.

309034 is a deficient number, since it is larger than the sum of its proper divisors (200888).

309034 is a wasteful number, since it uses less digits than its factorization.

309034 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1301 (or 1290 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 19.

The square root of 309034 is about 555.9082658137. The cubic root of 309034 is about 67.6086225478.

Adding to 309034 its reverse (430903), we get a palindrome (739937).

The spelling of 309034 in words is "three hundred nine thousand, thirty-four".

Divisors: 1 2 11 22 121 242 1277 2554 14047 28094 154517 309034