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34381906 = 2131979881
BaseRepresentation
bin1000001100101…
…0000001010010
32101200210002221
42003022001102
532300210111
63224531254
7565145536
oct203120122
971623087
1034381906
11184536a9
12b620b2a
13717a630
1447cdbc6
153042371
hex20ca052

34381906 has 32 divisors (see below), whose sum is σ = 59270400. Its totient is φ = 14826240.

The previous prime is 34381889. The next prime is 34381909. The reversal of 34381906 is 60918343.

It is not an unprimeable number, because it can be changed into a prime (34381909) 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, 38586 + ... + 39466.

It is an arithmetic number, because the mean of its divisors is an integer number (1852200).

Almost surely, 234381906 is an apocalyptic number.

34381906 is a deficient number, since it is larger than the sum of its proper divisors (24888494).

34381906 is a wasteful number, since it uses less digits than its factorization.

34381906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 994.

The product of its (nonzero) digits is 15552, while the sum is 34.

The square root of 34381906 is about 5863.6086158611. The cubic root of 34381906 is about 325.1696345204.

The spelling of 34381906 in words is "thirty-four million, three hundred eighty-one thousand, nine hundred six".

Divisors: 1 2 13 19 26 38 79 158 247 494 881 1027 1501 1762 2054 3002 11453 16739 19513 22906 33478 39026 69599 139198 217607 435214 904787 1322381 1809574 2644762 17190953 34381906