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34450672 = 243169457
BaseRepresentation
bin1000001101101…
…0110011110000
32101211021102211
42003122303300
532304410142
63230221504
7565553164
oct203326360
971737384
1034450672
11184a0333
12b654894
1371a2a19
14480aca4
153057917
hex20dacf0

34450672 has 20 divisors (see below), whose sum is σ = 68902336. Its totient is φ = 16669440.

The previous prime is 34450643. The next prime is 34450673. The reversal of 34450672 is 27605443.

34450672 is an admirable number.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34450673) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34233 + ... + 35224.

Almost surely, 234450672 is an apocalyptic number.

It is an amenable number.

34450672 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

34450672 is a wasteful number, since it uses less digits than its factorization.

34450672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69496 (or 69490 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 31.

The square root of 34450672 is about 5869.4694819890. The cubic root of 34450672 is about 325.3862768058.

The spelling of 34450672 in words is "thirty-four million, four hundred fifty thousand, six hundred seventy-two".

Divisors: 1 2 4 8 16 31 62 124 248 496 69457 138914 277828 555656 1111312 2153167 4306334 8612668 17225336 34450672