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34252890 = 2357163109
BaseRepresentation
bin1000001010101…
…0100001011010
32101110020010120
42002222201122
532232043030
63222054110
7564100440
oct202524132
971406116
1034252890
1118375781
12b57a336
1371339a9
144798b90
153019010
hex20aa85a

34252890 has 32 divisors (see below), whose sum is σ = 93951360. Its totient is φ = 7829184.

The previous prime is 34252871. The next prime is 34252891. The reversal of 34252890 is 9825243.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (34252891) 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, 81345 + ... + 81764.

It is an arithmetic number, because the mean of its divisors is an integer number (2935980).

Almost surely, 234252890 is an apocalyptic number.

34252890 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

34252890 is an abundant number, since it is smaller than the sum of its proper divisors (59698470).

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

34252890 is a wasteful number, since it uses less digits than its factorization.

34252890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163126.

The product of its (nonzero) digits is 17280, while the sum is 33.

The square root of 34252890 is about 5852.5968595146. The cubic root of 34252890 is about 324.7623983281.

The spelling of 34252890 in words is "thirty-four million, two hundred fifty-two thousand, eight hundred ninety".

Divisors: 1 2 3 5 6 7 10 14 15 21 30 35 42 70 105 210 163109 326218 489327 815545 978654 1141763 1631090 2283526 2446635 3425289 4893270 5708815 6850578 11417630 17126445 34252890