Search a number
-
+
51144026143 = 747155452967
BaseRepresentation
bin101111101000011010…
…111110100000011111
311220000022111201110111
4233220122332200133
51314220332314033
635254545550451
73460253022640
oct575032764037
9156008451414
1051144026143
111a765518901
129ab4045427
134a90a96982
14269264d6c7
1514e50257cd
hexbe86be81f

51144026143 has 8 divisors (see below), whose sum is σ = 59693939712. Its totient is φ = 42905018616.

The previous prime is 51144026119. The next prime is 51144026177. The reversal of 51144026143 is 34162044115.

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 51144026143 - 217 = 51143895071 is a prime.

It is a super-2 number, since 2×511440261432 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51144026183) 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, 77726155 + ... + 77726812.

It is an arithmetic number, because the mean of its divisors is an integer number (7461742464).

Almost surely, 251144026143 is an apocalyptic number.

51144026143 is a deficient number, since it is larger than the sum of its proper divisors (8549913569).

51144026143 is a wasteful number, since it uses less digits than its factorization.

51144026143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155453021.

The product of its (nonzero) digits is 11520, while the sum is 31.

The spelling of 51144026143 in words is "fifty-one billion, one hundred forty-four million, twenty-six thousand, one hundred forty-three".

Divisors: 1 7 47 329 155452967 1088170769 7306289449 51144026143