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1244242030 = 25241516283
BaseRepresentation
bin100101000101001…
…1010000001101110
310012201021001012011
41022022122001232
510022011221110
6323244231434
742555611533
oct11212320156
93181231164
101244242030
115893844a9
122a883b57a
1316aa14ab5
14bb368d8a
157437948a
hex4a29a06e

1244242030 has 16 divisors (see below), whose sum is σ = 2248933104. Its totient is φ = 495630720.

The previous prime is 1244242007. The next prime is 1244242039. The reversal of 1244242030 is 302424421.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1244241992 and 1244242010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1244242039) 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, 255732 + ... + 260551.

It is an arithmetic number, because the mean of its divisors is an integer number (140558319).

Almost surely, 21244242030 is an apocalyptic number.

1244242030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1244242030 is a deficient number, since it is larger than the sum of its proper divisors (1004691074).

1244242030 is a wasteful number, since it uses less digits than its factorization.

1244242030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 516531.

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 1244242030 is about 35273.8150757754. The cubic root of 1244242030 is about 1075.5607761048.

Adding to 1244242030 its reverse (302424421), we get a palindrome (1546666451).

The spelling of 1244242030 in words is "one billion, two hundred forty-four million, two hundred forty-two thousand, thirty".

Divisors: 1 2 5 10 241 482 1205 2410 516283 1032566 2581415 5162830 124424203 248848406 622121015 1244242030