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420258091 = 11121731393
BaseRepresentation
bin11001000011001…
…010000100101011
31002021210022201111
4121003022010223
51330041224331
6105411331151
713262064151
oct3103120453
91067708644
10420258091
111a6252140
12b88b0ab7
13690b5336
143db593d1
1526d65db1
hex190ca12b

420258091 has 8 divisors (see below), whose sum is σ = 458854704. Its totient is φ = 381726720.

The previous prime is 420258073. The next prime is 420258101. The reversal of 420258091 is 190852024.

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 420258091 - 211 = 420256043 is a prime.

It is not an unprimeable number, because it can be changed into a prime (420258011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2310 + ... + 29083.

It is an arithmetic number, because the mean of its divisors is an integer number (57356838).

Almost surely, 2420258091 is an apocalyptic number.

420258091 is a deficient number, since it is larger than the sum of its proper divisors (38596613).

420258091 is a wasteful number, since it uses less digits than its factorization.

420258091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32621.

The product of its (nonzero) digits is 5760, while the sum is 31.

The square root of 420258091 is about 20500.1973405136. The cubic root of 420258091 is about 749.0406049752.

The spelling of 420258091 in words is "four hundred twenty million, two hundred fifty-eight thousand, ninety-one".

Divisors: 1 11 1217 13387 31393 345323 38205281 420258091