Search a number
-
+
51053131423 = 719383858131
BaseRepresentation
bin101111100011000000…
…001111011010011111
311212202222110210100101
4233203000033122133
51314024100201143
635241541441531
73455100312520
oct574300173237
9155688423311
1051053131423
111a7191862a8
129a897102a7
134a77cc0708
14268454c847
1514dc06db4d
hexbe300f69f

51053131423 has 8 divisors (see below), whose sum is σ = 61417301120. Its totient is φ = 41456678040.

The previous prime is 51053131343. The next prime is 51053131439. The reversal of 51053131423 is 32413135015.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-51053131423 is a prime.

It is a super-2 number, since 2×510531314232 (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 51053131391 and 51053131400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51053131453) 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, 191928933 + ... + 191929198.

It is an arithmetic number, because the mean of its divisors is an integer number (7677162640).

Almost surely, 251053131423 is an apocalyptic number.

51053131423 is a deficient number, since it is larger than the sum of its proper divisors (10364169697).

51053131423 is a wasteful number, since it uses less digits than its factorization.

51053131423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 383858157.

The product of its (nonzero) digits is 5400, while the sum is 28.

Adding to 51053131423 its reverse (32413135015), we get a palindrome (83466266438).

The spelling of 51053131423 in words is "fifty-one billion, fifty-three million, one hundred thirty-one thousand, four hundred twenty-three".

Divisors: 1 7 19 133 383858131 2687006917 7293304489 51053131423