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2225612077 = 131229139301
BaseRepresentation
bin1000010010101000…
…0010010100101101
312202002212210210221
42010222002110231
514024224041302
61004502331341
7106103250643
oct20452022455
95662783727
102225612077
11a42333327
12521429b51
1329612b330
14171827193
15d05ca937
hex84a8252d

2225612077 has 8 divisors (see below), whose sum is σ = 2398780440. Its totient is φ = 2052724800.

The previous prime is 2225612057. The next prime is 2225612083. The reversal of 2225612077 is 7702165222.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1132053316 + 1093558761 = 33646^2 + 33069^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 2225612077 - 223 = 2217223469 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2225612057) 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, 53674 + ... + 85627.

It is an arithmetic number, because the mean of its divisors is an integer number (299847555).

Almost surely, 22225612077 is an apocalyptic number.

It is an amenable number.

2225612077 is a deficient number, since it is larger than the sum of its proper divisors (173168363).

2225612077 is a wasteful number, since it uses less digits than its factorization.

2225612077 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140543.

The product of its (nonzero) digits is 23520, while the sum is 34.

The square root of 2225612077 is about 47176.3932173709. The cubic root of 2225612077 is about 1305.6190849177.

Adding to 2225612077 its reverse (7702165222), we get a palindrome (9927777299).

The spelling of 2225612077 in words is "two billion, two hundred twenty-five million, six hundred twelve thousand, seventy-seven".

Divisors: 1 13 1229 15977 139301 1810913 171200929 2225612077