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51040014480 = 243257132311933
BaseRepresentation
bin101111100010001110…
…001101000010010000
311212202001210101021200
4233202032031002100
51314012220430410
635240352351200
73454550651640
oct574216150220
9155661711250
1051040014480
111a711837354
129a85245500
134a7537a200
1426828d6520
1514dad2c3c0
hexbe238d090

51040014480 has 720 divisors, whose sum is σ = 219080549376. Its totient is φ = 10416107520.

The previous prime is 51040014457. The next prime is 51040014499. The reversal of 51040014480 is 8441004015.

It is a happy number.

51040014480 is a `hidden beast` number, since 510 + 4 + 0 + 0 + 144 + 8 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (720).

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 26403594 + ... + 26405526.

Almost surely, 251040014480 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51040014480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (109540274688).

51040014480 is an abundant number, since it is smaller than the sum of its proper divisors (168040534896).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51040014480 is a wasteful number, since it uses less digits than its factorization.

51040014480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2016 (or 1994 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 27.

Adding to 51040014480 its reverse (8441004015), we get a palindrome (59481018495).

The spelling of 51040014480 in words is "fifty-one billion, forty million, fourteen thousand, four hundred eighty".