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51832061 = 359144379
BaseRepresentation
bin1100010110111…
…0010011111101
310121112100012222
43011232103331
5101232111221
65050535125
71166364611
oct305562375
9117470188
1051832061
1127292216
12154374a5
13a97a278
146c53341
15483c9ab
hex316e4fd

51832061 has 4 divisors (see below), whose sum is σ = 51976800. Its totient is φ = 51687324.

The previous prime is 51832051. The next prime is 51832097. The reversal of 51832061 is 16023815.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-51832061 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 51832061.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51832021) 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, 71831 + ... + 72548.

It is an arithmetic number, because the mean of its divisors is an integer number (12994200).

Almost surely, 251832061 is an apocalyptic number.

It is an amenable number.

51832061 is a deficient number, since it is larger than the sum of its proper divisors (144739).

51832061 is a wasteful number, since it uses less digits than its factorization.

51832061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144738.

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 51832061 is about 7199.4486594461. The cubic root of 51832061 is about 372.8488655461.

Adding to 51832061 its reverse (16023815), we get a palindrome (67855876).

The spelling of 51832061 in words is "fifty-one million, eight hundred thirty-two thousand, sixty-one".

Divisors: 1 359 144379 51832061