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34723000243 = 145123930393
BaseRepresentation
bin100000010101101001…
…101110111110110011
310022121220110011201001
4200111221232332303
51032103042001433
623541310222431
72336316426601
oct402551567663
9108556404631
1034723000243
11137a9257018
1268907b4a17
133374a19ab9
141975802871
15d835b657d
hex815a6efb3

34723000243 has 4 divisors (see below), whose sum is σ = 34746932088. Its totient is φ = 34699068400.

The previous prime is 34723000241. The next prime is 34723000261. The reversal of 34723000243 is 34200032743.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34200032743 = 106931992547.

It is a cyclic number.

It is not a de Polignac number, because 34723000243 - 21 = 34723000241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (34723000241) 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, 11963746 + ... + 11966647.

It is an arithmetic number, because the mean of its divisors is an integer number (8686733022).

Almost surely, 234723000243 is an apocalyptic number.

34723000243 is the 99604-th centered heptagonal number.

34723000243 is a deficient number, since it is larger than the sum of its proper divisors (23931845).

34723000243 is a wasteful number, since it uses less digits than its factorization.

34723000243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23931844.

The product of its (nonzero) digits is 12096, while the sum is 28.

Adding to 34723000243 its reverse (34200032743), we get a palindrome (68923032986).

The spelling of 34723000243 in words is "thirty-four billion, seven hundred twenty-three million, two hundred forty-three", and thus it is an aban number.

Divisors: 1 1451 23930393 34723000243