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221141342 = 21910195711
BaseRepresentation
bin11010010111001…
…01100101011110
3120102010010220002
431023211211132
5423103010332
633535454302
75323445642
oct1513454536
9512103802
10221141342
11103912844
1262087392
1336a7a086
1421526c22
1514633562
hexd2e595e

221141342 has 16 divisors (see below), whose sum is σ = 349574400. Its totient is φ = 104630040.

The previous prime is 221141257. The next prime is 221141351. The reversal of 221141342 is 243141122.

It is a super-5 number, since 5×2211413425 (a number of 43 digits) contains 55555 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35867 + ... + 41577.

It is an arithmetic number, because the mean of its divisors is an integer number (21848400).

Almost surely, 2221141342 is an apocalyptic number.

221141342 is a deficient number, since it is larger than the sum of its proper divisors (128433058).

221141342 is a wasteful number, since it uses less digits than its factorization.

221141342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6751.

The product of its digits is 384, while the sum is 20.

The square root of 221141342 is about 14870.8218333756. The cubic root of 221141342 is about 604.7232228965.

Adding to 221141342 its reverse (243141122), we get a palindrome (464282464).

The spelling of 221141342 in words is "two hundred twenty-one million, one hundred forty-one thousand, three hundred forty-two".

Divisors: 1 2 19 38 1019 2038 5711 11422 19361 38722 108509 217018 5819509 11639018 110570671 221141342