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1255000430 = 25521240883
BaseRepresentation
bin100101011001101…
…1100100101101110
310020110111121221102
41022303130211232
510032240003210
6324311003102
743046220245
oct11263344556
93213447842
101255000430
11594462442
122b0369492
13170010908
14bc96995c
15752a1ea5
hex4acdc96e

1255000430 has 16 divisors (see below), whose sum is σ = 2263346064. Its totient is φ = 501034560.

The previous prime is 1255000403. The next prime is 1255000489. The reversal of 1255000430 is 340005521.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 115232 + ... + 125651.

It is an arithmetic number, because the mean of its divisors is an integer number (141459129).

Almost surely, 21255000430 is an apocalyptic number.

1255000430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1255000430 is a deficient number, since it is larger than the sum of its proper divisors (1008345634).

1255000430 is a wasteful number, since it uses less digits than its factorization.

1255000430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 241411.

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 1255000430 is about 35425.9852368286. The cubic root of 1255000430 is about 1078.6518471932.

Adding to 1255000430 its reverse (340005521), we get a palindrome (1595005951).

The spelling of 1255000430 in words is "one billion, two hundred fifty-five million, four hundred thirty", and thus it is an aban number.

Divisors: 1 2 5 10 521 1042 2605 5210 240883 481766 1204415 2408830 125500043 251000086 627500215 1255000430