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34192890 = 2325715351
BaseRepresentation
bin1000001001101…
…1110111111010
32101100011211100
42002123313322
532223133030
63220512230
7563430504
oct202336772
971304740
1034192890
1118334696
12b54b676
1371125a4
144780d74
153006360
hex209bdfa

34192890 has 48 divisors (see below), whose sum is σ = 90170496. Its totient is φ = 8988000.

The previous prime is 34192889. The next prime is 34192901. The reversal of 34192890 is 9829143.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3715 + ... + 9065.

It is an arithmetic number, because the mean of its divisors is an integer number (1878552).

Almost surely, 234192890 is an apocalyptic number.

34192890 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 34192890, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45085248).

34192890 is an abundant number, since it is smaller than the sum of its proper divisors (55977606).

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

34192890 is a wasteful number, since it uses less digits than its factorization.

34192890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5435 (or 5432 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The square root of 34192890 is about 5847.4686831141. The cubic root of 34192890 is about 324.5726612231.

The spelling of 34192890 in words is "thirty-four million, one hundred ninety-two thousand, eight hundred ninety".

Divisors: 1 2 3 5 6 9 10 15 18 30 45 71 90 142 213 355 426 639 710 1065 1278 2130 3195 5351 6390 10702 16053 26755 32106 48159 53510 80265 96318 160530 240795 379921 481590 759842 1139763 1899605 2279526 3419289 3799210 5698815 6838578 11397630 17096445 34192890