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34418140 = 2253746511
BaseRepresentation
bin1000001101001…
…0110111011100
32101202121210221
42003102313130
532302340030
63225411124
7565356301
oct203226734
971677727
1034418140
1118478949
12b639aa4
137190c83
1447dd0a8
15304ce7a
hex20d2ddc

34418140 has 24 divisors (see below), whose sum is σ = 74233152. Its totient is φ = 13394880.

The previous prime is 34418123. The next prime is 34418141. The reversal of 34418140 is 4181443.

34418140 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×344181402 = 2369216722119200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34418141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22516 + ... + 23995.

It is an arithmetic number, because the mean of its divisors is an integer number (3093048).

Almost surely, 234418140 is an apocalyptic number.

It is an amenable number.

34418140 is an abundant number, since it is smaller than the sum of its proper divisors (39815012).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

34418140 is a wasteful number, since it uses less digits than its factorization.

34418140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46557 (or 46555 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 25.

The square root of 34418140 is about 5866.6975377976. The cubic root of 34418140 is about 325.2838230706.

Adding to 34418140 its reverse (4181443), we get a palindrome (38599583).

The spelling of 34418140 in words is "thirty-four million, four hundred eighteen thousand, one hundred forty".

Divisors: 1 2 4 5 10 20 37 74 148 185 370 740 46511 93022 186044 232555 465110 930220 1720907 3441814 6883628 8604535 17209070 34418140