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34978930 = 2572917231
BaseRepresentation
bin1000010101101…
…1110001110010
32102211010001221
42011123301302
532423311210
63245415254
7603213250
oct205336162
972733057
1034978930
1118821208
12b86a52a
1373292bc
1449075d0
15310e1da
hex215bc72

34978930 has 32 divisors (see below), whose sum is σ = 74442240. Its totient is φ = 11578560.

The previous prime is 34978921. The next prime is 34978961. The reversal of 34978930 is 3987943.

34978930 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 6586 + ... + 10645.

It is an arithmetic number, because the mean of its divisors is an integer number (2326320).

Almost surely, 234978930 is an apocalyptic number.

34978930 is an abundant number, since it is smaller than the sum of its proper divisors (39463310).

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

34978930 is a wasteful number, since it uses less digits than its factorization.

34978930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17274.

The product of its (nonzero) digits is 163296, while the sum is 43.

The square root of 34978930 is about 5914.2987750028. The cubic root of 34978930 is about 327.0409784455.

The spelling of 34978930 in words is "thirty-four million, nine hundred seventy-eight thousand, nine hundred thirty".

Divisors: 1 2 5 7 10 14 29 35 58 70 145 203 290 406 1015 2030 17231 34462 86155 120617 172310 241234 499699 603085 999398 1206170 2498495 3497893 4996990 6995786 17489465 34978930