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1223222430 = 235401101681
BaseRepresentation
bin100100011101000…
…1110010010011110
310011020201010201110
41020322032102132
510001121104210
6321213522450
742212135103
oct11072162236
93136633643
101223222430
11578528131
122a17a3426
13166565571
14b8656aaa
15725c6420
hex48e8e49e

1223222430 has 32 divisors (see below), whose sum is σ = 2943083808. Its totient is φ = 325376000.

The previous prime is 1223222411. The next prime is 1223222443. The reversal of 1223222430 is 342223221.

It is a super-2 number, since 2×12232224302 = 2992546226510209800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1223222397 and 1223222406.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38811 + ... + 62870.

It is an arithmetic number, because the mean of its divisors is an integer number (91971369).

Almost surely, 21223222430 is an apocalyptic number.

1223222430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1223222430 is an abundant number, since it is smaller than the sum of its proper divisors (1719861378).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1223222430 is a wasteful number, since it uses less digits than its factorization.

1223222430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102092.

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 1223222430 is about 34974.5969240533. The cubic root of 1223222430 is about 1069.4696850928.

Adding to 1223222430 its reverse (342223221), we get a palindrome (1565445651).

The spelling of 1223222430 in words is "one billion, two hundred twenty-three million, two hundred twenty-two thousand, four hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 401 802 1203 2005 2406 4010 6015 12030 101681 203362 305043 508405 610086 1016810 1525215 3050430 40774081 81548162 122322243 203870405 244644486 407740810 611611215 1223222430