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51004143001 = 719834620359
BaseRepresentation
bin101111100000000101…
…010111010110011001
311212122120021220212101
4233200011113112121
51313424030034001
635233031443401
73453634030240
oct574005272631
9155576256771
1051004143001
111a6a35665a9
129a75226561
134a6aaca896
14267bc39957
1514d7ae3a01
hexbe0157599

51004143001 has 16 divisors (see below), whose sum is σ = 62097638400. Its totient is φ = 40917890448.

The previous prime is 51004142971. The next prime is 51004143011. The reversal of 51004143001 is 10034140015.

51004143001 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 51004143001 - 211 = 51004140953 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a self number, because there is not a number n which added to its sum of digits gives 51004143001.

It is not an unprimeable number, because it can be changed into a prime (51004143011) 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, 2299141 + ... + 2321218.

It is an arithmetic number, because the mean of its divisors is an integer number (3881102400).

Almost surely, 251004143001 is an apocalyptic number.

It is an amenable number.

51004143001 is a deficient number, since it is larger than the sum of its proper divisors (11093495399).

51004143001 is a wasteful number, since it uses less digits than its factorization.

51004143001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4620468.

The product of its (nonzero) digits is 240, while the sum is 19.

Adding to 51004143001 its reverse (10034140015), we get a palindrome (61038283016).

The spelling of 51004143001 in words is "fifty-one billion, four million, one hundred forty-three thousand, one".

Divisors: 1 7 19 83 133 581 1577 11039 4620359 32342513 87786821 383489797 614507747 2684428579 7286306143 51004143001