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1331042222 = 21049963389
BaseRepresentation
bin100111101010110…
…0001011110101110
310102202120221200002
41033111201132232
510211221322342
6340024504302
744661446366
oct11725413656
93382527602
101331042222
1162337a7a4
1231191b092
131829b6463
14c8ac19a6
157bcc2d32
hex4f5617ae

1331042222 has 8 divisors (see below), whose sum is σ = 1996785000. Its totient is φ = 665447224.

The previous prime is 1331042221. The next prime is 1331042231. The reversal of 1331042222 is 2222401331.

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

It is a junction number, because it is equal to n+sod(n) for n = 1331042194 and 1331042203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1331042221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10697 + ... + 52692.

It is an arithmetic number, because the mean of its divisors is an integer number (249598125).

Almost surely, 21331042222 is an apocalyptic number.

1331042222 is a deficient number, since it is larger than the sum of its proper divisors (665742778).

1331042222 is a wasteful number, since it uses less digits than its factorization.

1331042222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73890.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 1331042222 is about 36483.4513444109. The cubic root of 1331042222 is about 1100.0116312820.

Adding to 1331042222 its reverse (2222401331), we get a palindrome (3553443553).

The spelling of 1331042222 in words is "one billion, three hundred thirty-one million, forty-two thousand, two hundred twenty-two".

Divisors: 1 2 10499 20998 63389 126778 665521111 1331042222