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2561112411 = 311135969959
BaseRepresentation
bin1001100010100111…
…0111100101011011
320121111011222202020
42120221313211123
520221121044121
61102045305523
7120316045014
oct23051674533
96544158666
102561112411
1110a4754730
125b58652a3
1331a7a8840
141a41dc00b
15eec9d1c6
hex98a7795b

2561112411 has 16 divisors (see below), whose sum is σ = 4011813120. Its totient is φ = 1432789920.

The previous prime is 2561112397. The next prime is 2561112427. The reversal of 2561112411 is 1142111652.

It is not a de Polignac number, because 2561112411 - 213 = 2561104219 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2561112451) 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, 2984551 + ... + 2985408.

It is an arithmetic number, because the mean of its divisors is an integer number (250738320).

Almost surely, 22561112411 is an apocalyptic number.

2561112411 is a deficient number, since it is larger than the sum of its proper divisors (1450700709).

2561112411 is a wasteful number, since it uses less digits than its factorization.

2561112411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5969986.

The product of its digits is 480, while the sum is 24.

The square root of 2561112411 is about 50607.4343451632. The cubic root of 2561112411 is about 1368.1788740700.

The spelling of 2561112411 in words is "two billion, five hundred sixty-one million, one hundred twelve thousand, four hundred eleven".

Divisors: 1 3 11 13 33 39 143 429 5969959 17909877 65669549 77609467 197008647 232828401 853704137 2561112411