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255435630 = 2358514521
BaseRepresentation
bin11110011100110…
…10001101101110
3122210122110210220
433032122031232
51010342420010
641202512210
76221111202
oct1716321556
9583573726
10255435630
1112120662a
1271665666
1340bc6858
1425cd2b02
1517659970
hexf39a36e

255435630 has 16 divisors (see below), whose sum is σ = 613045584. Its totient is φ = 68116160.

The previous prime is 255435623. The next prime is 255435637. The reversal of 255435630 is 36534552.

It is an interprime number because it is at equal distance from previous prime (255435623) and next prime (255435637).

It is a super-2 number, since 2×2554356302 = 130494722146993800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 255435591 and 255435600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255435637) by changing a digit.

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, 4257231 + ... + 4257290.

It is an arithmetic number, because the mean of its divisors is an integer number (38315349).

Almost surely, 2255435630 is an apocalyptic number.

255435630 is an abundant number, since it is smaller than the sum of its proper divisors (357609954).

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

255435630 is a wasteful number, since it uses less digits than its factorization.

255435630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8514531.

The product of its (nonzero) digits is 54000, while the sum is 33.

The square root of 255435630 is about 15982.3537065102. The cubic root of 255435630 is about 634.4934725145.

The spelling of 255435630 in words is "two hundred fifty-five million, four hundred thirty-five thousand, six hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 8514521 17029042 25543563 42572605 51087126 85145210 127717815 255435630