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34380680 = 235978861
BaseRepresentation
bin1000001100100…
…1101110001000
32101200201102112
42003021232020
532300140210
63224521452
7565142135
oct203115610
971621375
1034380680
1118452794
12b620288
137179bc9
1447cd58c
153041d05
hex20c9b88

34380680 has 32 divisors (see below), whose sum is σ = 78162840. Its totient is φ = 13608960.

The previous prime is 34380667. The next prime is 34380691. The reversal of 34380680 is 8608343.

It can be written as a sum of positive squares in 4 ways, for example, as 33616804 + 763876 = 5798^2 + 874^2 .

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, 551 + ... + 8310.

Almost surely, 234380680 is an apocalyptic number.

It is an amenable number.

34380680 is an abundant number, since it is smaller than the sum of its proper divisors (43782160).

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

34380680 is a wasteful number, since it uses less digits than its factorization.

34380680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8969 (or 8965 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 32.

The square root of 34380680 is about 5863.5040717987. The cubic root of 34380680 is about 325.1657694766.

The spelling of 34380680 in words is "thirty-four million, three hundred eighty thousand, six hundred eighty".

Divisors: 1 2 4 5 8 10 20 40 97 194 388 485 776 970 1940 3880 8861 17722 35444 44305 70888 88610 177220 354440 859517 1719034 3438068 4297585 6876136 8595170 17190340 34380680