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1232221230 = 232513691347
BaseRepresentation
bin100100101110010…
…0011010000101110
310011212122022202100
41021130203100232
510010422034410
6322134435530
742351464502
oct11134432056
93155568670
101232221230
11582614059
122a4802ba6
131683964b6
14b991a302
15732a28c0
hex4972342e

1232221230 has 24 divisors (see below), whose sum is σ = 3203775432. Its totient is φ = 328592304.

The previous prime is 1232221219. The next prime is 1232221247. The reversal of 1232221230 is 321222321.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6845584 + ... + 6845763.

It is an arithmetic number, because the mean of its divisors is an integer number (133490643).

Almost surely, 21232221230 is an apocalyptic number.

1232221230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1232221230 is an abundant number, since it is smaller than the sum of its proper divisors (1971554202).

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

1232221230 is a wasteful number, since it uses less digits than its factorization.

1232221230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13691360 (or 13691357 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 1232221230 is about 35103.0088453967. The cubic root of 1232221230 is about 1072.0858459275.

Adding to 1232221230 its reverse (321222321), we get a palindrome (1553443551).

The spelling of 1232221230 in words is "one billion, two hundred thirty-two million, two hundred twenty-one thousand, two hundred thirty".

Divisors: 1 2 3 5 6 9 10 15 18 30 45 90 13691347 27382694 41074041 68456735 82148082 123222123 136913470 205370205 246444246 410740410 616110615 1232221230