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424780291 = 1371460217
BaseRepresentation
bin11001010100011…
…010001000000011
31002121022002000101
4121110122020003
51332220432131
6110052303231
713345400335
oct3124321003
91077262011
10424780291
111a88607a1
12ba311b17
136a0097b0
14405b5455
152745ac61
hex1951a203

424780291 has 8 divisors (see below), whose sum is σ = 463899744. Its totient is φ = 386581440.

The previous prime is 424780289. The next prime is 424780297. The reversal of 424780291 is 192087424.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 424780291 - 21 = 424780289 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 424780291.

It is not an unprimeable number, because it can be changed into a prime (424780297) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 229186 + ... + 231031.

It is an arithmetic number, because the mean of its divisors is an integer number (57987468).

Almost surely, 2424780291 is an apocalyptic number.

424780291 is a deficient number, since it is larger than the sum of its proper divisors (39119453).

424780291 is a wasteful number, since it uses less digits than its factorization.

424780291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 460301.

The product of its (nonzero) digits is 32256, while the sum is 37.

The square root of 424780291 is about 20610.1987132584. The cubic root of 424780291 is about 751.7177168543.

The spelling of 424780291 in words is "four hundred twenty-four million, seven hundred eighty thousand, two hundred ninety-one".

Divisors: 1 13 71 923 460217 5982821 32675407 424780291