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34351321 = 58612
BaseRepresentation
bin1000001100001…
…0100011011001
32101122020011011
42003002203121
532243220241
63224133521
7564660424
oct203024331
971566134
1034351321
1118432724
12b6072a1
137169734
1447c29bb
153038281
hex20c28d9

34351321 has 3 divisors (see below), whose sum is σ = 34357183. Its totient is φ = 34345460.

The previous prime is 34351309. The next prime is 34351327. The reversal of 34351321 is 12315343.

The square root of 34351321 is 5861.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 12315343 = 29424667.

It can be written as a sum of positive squares in only one way, i.e., 15515721 + 18835600 = 3939^2 + 4340^2 .

It is not a de Polignac number, because 34351321 - 213 = 34343129 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 34351292 and 34351301.

It is not an unprimeable number, because it can be changed into a prime (34351327) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 2931 + ... + 8791.

Almost surely, 234351321 is an apocalyptic number.

34351321 is the 5861-st square number.

34351321 is the 2931-st centered octagonal number.

It is an amenable number.

34351321 is a deficient number, since it is larger than the sum of its proper divisors (5862).

34351321 is an frugal number, since it uses more digits than its factorization.

34351321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11722 (or 5861 counting only the distinct ones).

The product of its digits is 1080, while the sum is 22.

The cubic root of 34351321 is about 325.0731858851.

Adding to 34351321 its reverse (12315343), we get a palindrome (46666664).

The spelling of 34351321 in words is "thirty-four million, three hundred fifty-one thousand, three hundred twenty-one".

Divisors: 1 5861 34351321