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1223634030 = 235377315101
BaseRepresentation
bin100100011101111…
…0010110001101110
310011021111001022220
41020323302301232
510001222242110
6321230420210
742215501103
oct11073626156
93137431286
101223634030
115787893a3
122a1961666
1316667aa08
14b8722aaa
1572658370
hex48ef2c6e

1223634030 has 64 divisors (see below), whose sum is σ = 3057611328. Its totient is φ = 313113600.

The previous prime is 1223634011. The next prime is 1223634037. The reversal of 1223634030 is 304363221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1223634037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 73480 + ... + 88580.

It is an arithmetic number, because the mean of its divisors is an integer number (47775177).

Almost surely, 21223634030 is an apocalyptic number.

1223634030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1223634030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1528805664).

1223634030 is an abundant number, since it is smaller than the sum of its proper divisors (1833977298).

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

1223634030 is a wasteful number, since it uses less digits than its factorization.

1223634030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15221.

The product of its (nonzero) digits is 2592, while the sum is 24.

The square root of 1223634030 is about 34980.4806999561. The cubic root of 1223634030 is about 1069.5896263091.

Adding to 1223634030 its reverse (304363221), we get a palindrome (1527997251).

The spelling of 1223634030 in words is "one billion, two hundred twenty-three million, six hundred thirty-four thousand, thirty".

Divisors: 1 2 3 5 6 10 15 30 37 73 74 111 146 185 219 222 365 370 438 555 730 1095 1110 2190 2701 5402 8103 13505 15101 16206 27010 30202 40515 45303 75505 81030 90606 151010 226515 453030 558737 1102373 1117474 1676211 2204746 2793685 3307119 3352422 5511865 5587370 6614238 8381055 11023730 16535595 16762110 33071190 40787801 81575602 122363403 203939005 244726806 407878010 611817015 1223634030