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420025355 = 5312709841
BaseRepresentation
bin11001000010010…
…001010000001011
31002021100111110122
4121002101100023
51330011302410
6105402333455
713260104501
oct3102212013
91067314418
10420025355
111a61032a2
12b87ba28b
1369033419
143dad8671
1526d1be55
hex1909140b

420025355 has 8 divisors (see below), whose sum is σ = 520289664. Its totient is φ = 325180800.

The previous prime is 420025337. The next prime is 420025363. The reversal of 420025355 is 553520024.

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

It is a de Polignac number, because none of the positive numbers 2k-420025355 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1354766 + ... + 1355075.

It is an arithmetic number, because the mean of its divisors is an integer number (65036208).

Almost surely, 2420025355 is an apocalyptic number.

420025355 is a deficient number, since it is larger than the sum of its proper divisors (100264309).

420025355 is a wasteful number, since it uses less digits than its factorization.

420025355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2709877.

The product of its (nonzero) digits is 6000, while the sum is 26.

The square root of 420025355 is about 20494.5201212422. The cubic root of 420025355 is about 748.9023082884.

Adding to 420025355 its reverse (553520024), we get a palindrome (973545379).

The spelling of 420025355 in words is "four hundred twenty million, twenty-five thousand, three hundred fifty-five".

Divisors: 1 5 31 155 2709841 13549205 84005071 420025355