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222240131 = 1941285289
BaseRepresentation
bin11010011111100…
…01110110000011
3120111011222010222
431033301312003
5423343141011
634015213255
75336003261
oct1517616603
9514158128
10222240131
111044a3333
126251722b
1337073249
1421731431
151479dddb
hexd3f1d83

222240131 has 8 divisors (see below), whose sum is σ = 239643600. Its totient is φ = 205407360.

The previous prime is 222240121. The next prime is 222240173. The reversal of 222240131 is 131042222.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-222240131 is a prime.

It is a super-2 number, since 2×2222401312 = 98781351653794322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (222240121) 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, 141866 + ... + 143423.

It is an arithmetic number, because the mean of its divisors is an integer number (29955450).

Almost surely, 2222240131 is an apocalyptic number.

222240131 is a deficient number, since it is larger than the sum of its proper divisors (17403469).

222240131 is a wasteful number, since it uses less digits than its factorization.

222240131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 285349.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 222240131 is about 14907.7205165646. The cubic root of 222240131 is about 605.7231350447.

Adding to 222240131 its reverse (131042222), we get a palindrome (353282353).

The spelling of 222240131 in words is "two hundred twenty-two million, two hundred forty thousand, one hundred thirty-one".

Divisors: 1 19 41 779 285289 5420491 11696849 222240131