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2311012252 = 22785373571
BaseRepresentation
bin1000100110111111…
…0011111110011100
312222001120120211101
42021233303332130
514213104343002
61021153002444
7111161165023
oct21157637634
95861516741
102311012252
11a8656278a
12545b53424
132aaa2c693
1417ccd78ba
15d7d49587
hex89bf3f9c

2311012252 has 12 divisors (see below), whose sum is σ = 4044841416. Its totient is φ = 1155343280.

The previous prime is 2311012247. The next prime is 2311012261. The reversal of 2311012252 is 2522101132.

It is a super-2 number, since 2×23110122522 = 10681555257788223008, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5374 + ... + 68197.

It is an arithmetic number, because the mean of its divisors is an integer number (337070118).

Almost surely, 22311012252 is an apocalyptic number.

It is an amenable number.

2311012252 is a deficient number, since it is larger than the sum of its proper divisors (1733829164).

2311012252 is a wasteful number, since it uses less digits than its factorization.

2311012252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81428 (or 81426 counting only the distinct ones).

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

The square root of 2311012252 is about 48072.9887982846. The cubic root of 2311012252 is about 1322.1094699178.

Adding to 2311012252 its reverse (2522101132), we get a palindrome (4833113384).

The spelling of 2311012252 in words is "two billion, three hundred eleven million, twelve thousand, two hundred fifty-two".

Divisors: 1 2 4 7853 15706 31412 73571 147142 294284 577753063 1155506126 2311012252