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34440430 = 25231371093
BaseRepresentation
bin1000001101100…
…0010011101110
32101210202101111
42003120103232
532304043210
63230102234
7565511263
oct203302356
971722344
1034440430
1118493672
12b64a97a
13719b16b
14480726a
15305488a
hex20d84ee

34440430 has 32 divisors (see below), whose sum is σ = 65219904. Its totient is φ = 13069056.

The previous prime is 34440421. The next prime is 34440437. The reversal of 34440430 is 3404443.

It is a happy number.

It is a super-2 number, since 2×344404302 = 2372286437169800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34440437) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30964 + ... + 32056.

It is an arithmetic number, because the mean of its divisors is an integer number (2038122).

Almost surely, 234440430 is an apocalyptic number.

34440430 is a deficient number, since it is larger than the sum of its proper divisors (30779474).

34440430 is a wasteful number, since it uses less digits than its factorization.

34440430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1260.

The product of its (nonzero) digits is 2304, while the sum is 22.

The square root of 34440430 is about 5868.5969362361. The cubic root of 34440430 is about 325.3540284116.

Adding to 34440430 its reverse (3404443), we get a palindrome (37844873).

The spelling of 34440430 in words is "thirty-four million, four hundred forty thousand, four hundred thirty".

Divisors: 1 2 5 10 23 46 115 137 230 274 685 1093 1370 2186 3151 5465 6302 10930 15755 25139 31510 50278 125695 149741 251390 299482 748705 1497410 3444043 6888086 17220215 34440430