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34509138 = 2331185533
BaseRepresentation
bin1000001110100…
…1000101010010
32101221020122020
42003221011102
532313243023
63231352310
7566215506
oct203510522
971836566
1034509138
1118530254
12b682696
1371c3511
144824306
153069de3
hex20e9152

34509138 has 16 divisors (see below), whose sum is σ = 71245056. Its totient is φ = 11131920.

The previous prime is 34509121. The next prime is 34509179. The reversal of 34509138 is 83190543.

It is a junction number, because it is equal to n+sod(n) for n = 34509099 and 34509108.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 92581 + ... + 92952.

It is an arithmetic number, because the mean of its divisors is an integer number (4452816).

Almost surely, 234509138 is an apocalyptic number.

34509138 is an abundant number, since it is smaller than the sum of its proper divisors (36735918).

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

34509138 is a wasteful number, since it uses less digits than its factorization.

34509138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185569.

The product of its (nonzero) digits is 12960, while the sum is 33.

The square root of 34509138 is about 5874.4478889509. The cubic root of 34509138 is about 325.5702430512.

The spelling of 34509138 in words is "thirty-four million, five hundred nine thousand, one hundred thirty-eight".

Divisors: 1 2 3 6 31 62 93 186 185533 371066 556599 1113198 5751523 11503046 17254569 34509138