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2580257801 = 111979118529
BaseRepresentation
bin1001100111001011…
…1001110000001001
320122211012200021202
42121302321300021
520241021222201
61104011513545
7120640554332
oct23162716011
96584180252
102580257801
111104540970
126001588b5
1332174cc84
141a6983289
151017d0c6b
hex99cb9c09

2580257801 has 8 divisors (see below), whose sum is σ = 2816272800. Its totient is φ = 2344483840.

The previous prime is 2580257761. The next prime is 2580257809. The reversal of 2580257801 is 1087520852.

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-2580257801 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2580257809) 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, 37496 + ... + 81033.

It is an arithmetic number, because the mean of its divisors is an integer number (352034100).

Almost surely, 22580257801 is an apocalyptic number.

It is an amenable number.

2580257801 is a deficient number, since it is larger than the sum of its proper divisors (236014999).

2580257801 is a wasteful number, since it uses less digits than its factorization.

2580257801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120519.

The product of its (nonzero) digits is 44800, while the sum is 38.

The square root of 2580257801 is about 50796.2380595256. The cubic root of 2580257801 is about 1371.5796510887.

The spelling of 2580257801 in words is "two billion, five hundred eighty million, two hundred fifty-seven thousand, eight hundred one".

Divisors: 1 11 1979 21769 118529 1303819 234568891 2580257801