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34121423551 = 223811524571
BaseRepresentation
bin11111110001110010…
…111001101010111111
310021001222110220121211
4133301302321222333
51024340041023201
623401500305251
72315363212645
oct376162715277
9107058426554
1034121423551
111351a7215a6
126743242227
1332aa1bb667
141919969195
15d4a886651
hex7f1cb9abf

34121423551 has 4 divisors (see below), whose sum is σ = 34122970504. Its totient is φ = 34119876600.

The previous prime is 34121423549. The next prime is 34121423579. The reversal of 34121423551 is 15532412143.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15532412143 = 31501045553.

It is a cyclic number.

It is not a de Polignac number, because 34121423551 - 21 = 34121423549 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 (34121423521) 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, 739905 + ... + 784666.

It is an arithmetic number, because the mean of its divisors is an integer number (8530742626).

Almost surely, 234121423551 is an apocalyptic number.

34121423551 is a deficient number, since it is larger than the sum of its proper divisors (1546953).

34121423551 is a wasteful number, since it uses less digits than its factorization.

34121423551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1546952.

The product of its digits is 14400, while the sum is 31.

Adding to 34121423551 its reverse (15532412143), we get a palindrome (49653835694).

The spelling of 34121423551 in words is "thirty-four billion, one hundred twenty-one million, four hundred twenty-three thousand, five hundred fifty-one".

Divisors: 1 22381 1524571 34121423551