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34002013 = 73465781
BaseRepresentation
bin1000000110110…
…1010001011101
32100222110222211
42001231101131
532201031023
63212440421
7562004143
oct201552135
970873884
1034002013
1118214241
12b479111
137076746
144731593
152eb9a0d
hex206d45d

34002013 has 4 divisors (see below), whose sum is σ = 34467868. Its totient is φ = 33536160.

The previous prime is 34001999. The next prime is 34002047. The reversal of 34002013 is 31020043.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 31020043 = 42977219.

It can be written as a sum of positive squares in 2 ways, for example, as 8982009 + 25020004 = 2997^2 + 5002^2 .

It is a cyclic number.

It is not a de Polignac number, because 34002013 - 29 = 34001501 is a prime.

It is a super-2 number, since 2×340020132 = 2312273776104338, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 34001984 and 34002002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34002053) 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, 232818 + ... + 232963.

It is an arithmetic number, because the mean of its divisors is an integer number (8616967).

Almost surely, 234002013 is an apocalyptic number.

It is an amenable number.

34002013 is a deficient number, since it is larger than the sum of its proper divisors (465855).

34002013 is an equidigital number, since it uses as much as digits as its factorization.

34002013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 465854.

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 34002013 is about 5831.1245056164. The cubic root of 34002013 is about 323.9675734707.

Adding to 34002013 its reverse (31020043), we get a palindrome (65022056).

The spelling of 34002013 in words is "thirty-four million, two thousand, thirteen".

Divisors: 1 73 465781 34002013