Search a number
-
+
51354305461 = 229643348763
BaseRepresentation
bin101111110100111101…
…001000001110110101
311220112222012000110101
4233310331020032311
51320133200233321
635331500554101
73465415252114
oct576475101665
9156488160411
1051354305461
111a863191868
129b52552931
134ac550c9c4
1426b2549c7b
151508710791
hexbf4f483b5

51354305461 has 8 divisors (see below), whose sum is σ = 51658923680. Its totient is φ = 51050386512.

The previous prime is 51354305423. The next prime is 51354305479. The reversal of 51354305461 is 16450345315.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 51354305461 - 27 = 51354305333 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 51354305461.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51354308461) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27135 + ... + 321628.

It is an arithmetic number, because the mean of its divisors is an integer number (6457365460).

Almost surely, 251354305461 is an apocalyptic number.

It is an amenable number.

51354305461 is a deficient number, since it is larger than the sum of its proper divisors (304618219).

51354305461 is a wasteful number, since it uses less digits than its factorization.

51354305461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 349635.

The product of its (nonzero) digits is 108000, while the sum is 37.

The spelling of 51354305461 in words is "fifty-one billion, three hundred fifty-four million, three hundred five thousand, four hundred sixty-one".

Divisors: 1 229 643 147247 348763 79866727 224254609 51354305461