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34620913 = 163721149
BaseRepresentation
bin1000010000010…
…0010111110001
32102010220222001
42010010113301
532330332123
63234014001
7600162415
oct204042761
972126861
1034620913
11185a7228
12b717301
137232362
144852d45
15308d0ad
hex21045f1

34620913 has 4 divisors (see below), whose sum is σ = 34643700. Its totient is φ = 34598128.

The previous prime is 34620889. The next prime is 34620923. The reversal of 34620913 is 31902643.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 31902643 = 71449333.

It can be written as a sum of positive squares in 2 ways, for example, as 2096704 + 32524209 = 1448^2 + 5703^2 .

It is a cyclic number.

It is not a de Polignac number, because 34620913 - 217 = 34489841 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (34620923) 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, 8938 + ... + 12211.

It is an arithmetic number, because the mean of its divisors is an integer number (8660925).

Almost surely, 234620913 is an apocalyptic number.

It is an amenable number.

34620913 is a deficient number, since it is larger than the sum of its proper divisors (22787).

34620913 is a wasteful number, since it uses less digits than its factorization.

34620913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22786.

The product of its (nonzero) digits is 3888, while the sum is 28.

The square root of 34620913 is about 5883.9538577389. The cubic root of 34620913 is about 325.9213712535.

The spelling of 34620913 in words is "thirty-four million, six hundred twenty thousand, nine hundred thirteen".

Divisors: 1 1637 21149 34620913