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2512664065 = 52811788373
BaseRepresentation
bin1001010111000100…
…0011011000000001
320111010000120010001
42111301003120001
520121220222230
61053155040001
7116160202132
oct22561033001
96433016101
102512664065
11107a37377a
125a15a0001
13310744792
1419b9c9c89
15ea8cd0ca
hex95c43601

2512664065 has 8 divisors (see below), whose sum is σ = 3025928808. Its totient is φ = 2002976640.

The previous prime is 2512664059. The next prime is 2512664069. The reversal of 2512664065 is 5604662152.

It can be written as a sum of positive squares in 4 ways, for example, as 235561104 + 2277102961 = 15348^2 + 47719^2 .

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

It is not a de Polignac number, because 2512664065 - 227 = 2378446337 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2512664069) 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, 892782 + ... + 895591.

It is an arithmetic number, because the mean of its divisors is an integer number (378241101).

Almost surely, 22512664065 is an apocalyptic number.

It is an amenable number.

2512664065 is a deficient number, since it is larger than the sum of its proper divisors (513264743).

2512664065 is a wasteful number, since it uses less digits than its factorization.

2512664065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1788659.

The product of its (nonzero) digits is 86400, while the sum is 37.

The square root of 2512664065 is about 50126.4806763850. The cubic root of 2512664065 is about 1359.4966535879.

The spelling of 2512664065 in words is "two billion, five hundred twelve million, six hundred sixty-four thousand, sixty-five".

Divisors: 1 5 281 1405 1788373 8941865 502532813 2512664065