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34420253 = 743173661
BaseRepresentation
bin1000001101001…
…1011000011101
32101202201201012
42003103120131
532302422003
63225425005
7565365410
oct203233035
971681635
1034420253
111847a49a
12b63b165
137191c1a
1447ddb77
15304d8d8
hex20d361d

34420253 has 16 divisors (see below), whose sum is σ = 40546176. Its totient is φ = 28607040.

The previous prime is 34420247. The next prime is 34420271. The reversal of 34420253 is 35202443.

It is not a de Polignac number, because 34420253 - 212 = 34416157 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34420553) 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, 51743 + ... + 52403.

It is an arithmetic number, because the mean of its divisors is an integer number (2534136).

Almost surely, 234420253 is an apocalyptic number.

It is an amenable number.

34420253 is a deficient number, since it is larger than the sum of its proper divisors (6125923).

34420253 is a wasteful number, since it uses less digits than its factorization.

34420253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 884.

The product of its (nonzero) digits is 2880, while the sum is 23.

The square root of 34420253 is about 5866.8776193134. The cubic root of 34420253 is about 325.2904795474.

Adding to 34420253 its reverse (35202443), we get a palindrome (69622696).

The spelling of 34420253 in words is "thirty-four million, four hundred twenty thousand, two hundred fifty-three".

Divisors: 1 7 43 173 301 661 1211 4627 7439 28423 52073 114353 198961 800471 4917179 34420253