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1232887331 = 13234123369
BaseRepresentation
bin100100101111100…
…0101111000100011
310011220220011110202
41021133011320203
510011104343311
6322201015415
742360240464
oct11137057043
93156804422
101232887331
11582a29555
122a4a8456b
1316856a740
14b9a50d6b
1573384e3b
hex497c5e23

1232887331 has 8 divisors (see below), whose sum is σ = 1385452320. Its totient is φ = 1088569152.

The previous prime is 1232887319. The next prime is 1232887349. The reversal of 1232887331 is 1337882321.

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 1232887331 - 222 = 1228693027 is a prime.

It is a super-2 number, since 2×12328873312 = 3040022341880607122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1232887361) 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, 2061386 + ... + 2061983.

It is an arithmetic number, because the mean of its divisors is an integer number (173181540).

Almost surely, 21232887331 is an apocalyptic number.

1232887331 is a deficient number, since it is larger than the sum of its proper divisors (152564989).

1232887331 is a wasteful number, since it uses less digits than its factorization.

1232887331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4123405.

The product of its digits is 48384, while the sum is 38.

The square root of 1232887331 is about 35112.4953684582. The cubic root of 1232887331 is about 1072.2789900368.

The spelling of 1232887331 in words is "one billion, two hundred thirty-two million, eight hundred eighty-seven thousand, three hundred thirty-one".

Divisors: 1 13 23 299 4123369 53603797 94837487 1232887331