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51492992241 = 337676923893
BaseRepresentation
bin101111111101001110…
…001011010011110001
311220220122011000221210
4233331032023103301
51320424201222431
635353333310333
73502021132545
oct577516132361
9156818130853
1051492992241
111a9244a7239
129b90a953a9
134b1817a3a2
1426c6b2ba25
1515159a7d46
hexbfd38b4f1

51492992241 has 16 divisors (see below), whose sum is σ = 71565368384. Its totient is φ = 32902334784.

The previous prime is 51492992207. The next prime is 51492992263. The reversal of 51492992241 is 14229929415.

It is not a de Polignac number, because 51492992241 - 219 = 51492467953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51492922241) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3454510 + ... + 3469383.

It is an arithmetic number, because the mean of its divisors is an integer number (4472835524).

Almost surely, 251492992241 is an apocalyptic number.

It is an amenable number.

51492992241 is a deficient number, since it is larger than the sum of its proper divisors (20072376143).

51492992241 is a wasteful number, since it uses less digits than its factorization.

51492992241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6924000.

The product of its digits is 466560, while the sum is 48.

The spelling of 51492992241 in words is "fifty-one billion, four hundred ninety-two million, nine hundred ninety-two thousand, two hundred forty-one".

Divisors: 1 3 37 67 111 201 2479 7437 6923893 20771679 256184041 463900831 768552123 1391702493 17164330747 51492992241