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1361222230 = 25373678979
BaseRepresentation
bin101000100100010…
…1001101001010110
310111212101020212011
41101020221221112
510241433102410
6343023414434
745506124634
oct12110515126
93455336764
101361222230
11639413455
1231ba5441a
13189022354
14ccada354
157e78518a
hex51229a56

1361222230 has 16 divisors (see below), whose sum is σ = 2516422320. Its totient is φ = 529772832.

The previous prime is 1361222209. The next prime is 1361222231. The reversal of 1361222230 is 322221631.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1361222231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1839120 + ... + 1839859.

It is an arithmetic number, because the mean of its divisors is an integer number (157276395).

Almost surely, 21361222230 is an apocalyptic number.

1361222230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1361222230 is a deficient number, since it is larger than the sum of its proper divisors (1155200090).

1361222230 is a wasteful number, since it uses less digits than its factorization.

1361222230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3679023.

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 1361222230 is about 36894.7452898106. The cubic root of 1361222230 is about 1108.2634508234.

Adding to 1361222230 its reverse (322221631), we get a palindrome (1683443861).

The spelling of 1361222230 in words is "one billion, three hundred sixty-one million, two hundred twenty-two thousand, two hundred thirty".

Divisors: 1 2 5 10 37 74 185 370 3678979 7357958 18394895 36789790 136122223 272244446 680611115 1361222230