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1252430055 = 32579352301
BaseRepresentation
bin100101010100110…
…1001000011100111
310020021200001001100
41022221221003213
510031110230210
6324135531143
743015323402
oct11251510347
93207601040
101252430055
11592a67268
122ab529ab3
1316c620996
14bc49ad39
1574e455c0
hex4aa690e7

1252430055 has 24 divisors (see below), whose sum is σ = 2198364480. Its totient is φ = 659505600.

The previous prime is 1252430041. The next prime is 1252430059. The reversal of 1252430055 is 5500342521.

It is a happy number.

It is not a de Polignac number, because 1252430055 - 26 = 1252429991 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1252430059) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 172596 + ... + 179705.

It is an arithmetic number, because the mean of its divisors is an integer number (91598520).

Almost surely, 21252430055 is an apocalyptic number.

1252430055 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1252430055 is a deficient number, since it is larger than the sum of its proper divisors (945934425).

1252430055 is a wasteful number, since it uses less digits than its factorization.

1252430055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 352391 (or 352388 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 27.

The square root of 1252430055 is about 35389.6885405905. The cubic root of 1252430055 is about 1077.9149457943.

Adding to 1252430055 its reverse (5500342521), we get a palindrome (6752772576).

The spelling of 1252430055 in words is "one billion, two hundred fifty-two million, four hundred thirty thousand, fifty-five".

Divisors: 1 3 5 9 15 45 79 237 395 711 1185 3555 352301 1056903 1761505 3170709 5284515 15853545 27831779 83495337 139158895 250486011 417476685 1252430055