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1212110230 = 25314390931
BaseRepresentation
bin100100000111111…
…0101010110010110
310010110210120122111
41020033311112112
54440300011410
6320135421234
742015524032
oct11017652626
93113716574
101212110230
115722283a1
12299b2481a
131641746b6
14b6da31c2
157162db8a
hex483f5596

1212110230 has 32 divisors (see below), whose sum is σ = 2304580608. Its totient is φ = 458287200.

The previous prime is 1212110227. The next prime is 1212110233. The reversal of 1212110230 is 320112121.

It is an interprime number because it is at equal distance from previous prime (1212110227) and next prime (1212110233).

It is a super-2 number, since 2×12121102302 = 2938422419341305800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1212110230.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1212110233) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32136 + ... + 58795.

It is an arithmetic number, because the mean of its divisors is an integer number (72018144).

Almost surely, 21212110230 is an apocalyptic number.

1212110230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1212110230 is a deficient number, since it is larger than the sum of its proper divisors (1092470378).

1212110230 is a wasteful number, since it uses less digits than its factorization.

1212110230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91012.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 1212110230 is about 34815.3734720741. The cubic root of 1212110230 is about 1066.2213441647.

Adding to 1212110230 its reverse (320112121), we get a palindrome (1532222351).

The spelling of 1212110230 in words is "one billion, two hundred twelve million, one hundred ten thousand, two hundred thirty".

Divisors: 1 2 5 10 31 43 62 86 155 215 310 430 1333 2666 6665 13330 90931 181862 454655 909310 2818861 3910033 5637722 7820066 14094305 19550165 28188610 39100330 121211023 242422046 606055115 1212110230