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34813890 = 23251920359
BaseRepresentation
bin1000010011001…
…1011111000010
32102111201200100
42010303133002
532403021030
63242103230
7601625136
oct204633702
972451610
1034813890
1118719211
12b7aab16
13729c147
1448a33c6
1530ca360
hex21337c2

34813890 has 48 divisors (see below), whose sum is σ = 95284800. Its totient is φ = 8794656.

The previous prime is 34813873. The next prime is 34813901. The reversal of 34813890 is 9831843.

It is a Curzon number.

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, 8470 + ... + 11889.

It is an arithmetic number, because the mean of its divisors is an integer number (1985100).

Almost surely, 234813890 is an apocalyptic number.

34813890 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

34813890 is an abundant number, since it is smaller than the sum of its proper divisors (60470910).

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

34813890 is a wasteful number, since it uses less digits than its factorization.

34813890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20391 (or 20388 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 34813890 is about 5900.3296518076. The cubic root of 34813890 is about 326.5258115953.

The spelling of 34813890 in words is "thirty-four million, eight hundred thirteen thousand, eight hundred ninety".

Divisors: 1 2 3 5 6 9 10 15 18 19 30 38 45 57 90 95 114 171 190 285 342 570 855 1710 20359 40718 61077 101795 122154 183231 203590 305385 366462 386821 610770 773642 916155 1160463 1832310 1934105 2320926 3481389 3868210 5802315 6962778 11604630 17406945 34813890