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34381630 = 255364871
BaseRepresentation
bin1000001100100…
…1111100111110
32101200202201201
42003021330332
532300203010
63224530114
7565144663
oct203117476
971622651
1034381630
1118453478
12b62093a
13717a47a
1447cda6a
15304223a
hex20c9f3e

34381630 has 16 divisors (see below), whose sum is σ = 63055584. Its totient is φ = 13492960.

The previous prime is 34381609. The next prime is 34381631. The reversal of 34381630 is 3618343.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34381631) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31906 + ... + 32965.

It is an arithmetic number, because the mean of its divisors is an integer number (3940974).

Almost surely, 234381630 is an apocalyptic number.

34381630 is a deficient number, since it is larger than the sum of its proper divisors (28673954).

34381630 is a wasteful number, since it uses less digits than its factorization.

34381630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64931.

The product of its (nonzero) digits is 5184, while the sum is 28.

The square root of 34381630 is about 5863.5850808187. The cubic root of 34381630 is about 325.1687644207.

Adding to 34381630 its reverse (3618343), we get a palindrome (37999973).

The spelling of 34381630 in words is "thirty-four million, three hundred eighty-one thousand, six hundred thirty".

Divisors: 1 2 5 10 53 106 265 530 64871 129742 324355 648710 3438163 6876326 17190815 34381630