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34545989 = 172979887
BaseRepresentation
bin1000001111001…
…0000101000101
32102000010012002
42003302011011
532320432424
63232235045
7566431112
oct203620505
972003162
1034545989
1118555a05
12b69ba85
13720721a
144833909
153075cae
hex20f2145

34545989 has 16 divisors (see below), whose sum is σ = 38361600. Its totient is φ = 30960384.

The previous prime is 34545949. The next prime is 34546003. The reversal of 34545989 is 98954543.

It is a cyclic number.

It is not a de Polignac number, because 34545989 - 28 = 34545733 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34545919) 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, 38504 + ... + 39390.

It is an arithmetic number, because the mean of its divisors is an integer number (2397600).

Almost surely, 234545989 is an apocalyptic number.

It is an amenable number.

34545989 is a deficient number, since it is larger than the sum of its proper divisors (3815611).

34545989 is a wasteful number, since it uses less digits than its factorization.

34545989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1012.

The product of its digits is 777600, while the sum is 47.

The square root of 34545989 is about 5877.5836021277. The cubic root of 34545989 is about 325.6860898642.

The spelling of 34545989 in words is "thirty-four million, five hundred forty-five thousand, nine hundred eighty-nine".

Divisors: 1 17 29 79 493 887 1343 2291 15079 25723 38947 70073 437291 1191241 2032117 34545989