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420687033 = 31310786847
BaseRepresentation
bin11001000100110…
…010110010111001
31002022121010010020
4121010302302321
51330143441113
6105424441053
713265531544
oct3104626271
91068533106
10420687033
111a6515438
12b8a79189
1369205650
143dc2b85b
1526ded023
hex19132cb9

420687033 has 8 divisors (see below), whose sum is σ = 604063488. Its totient is φ = 258884304.

The previous prime is 420687031. The next prime is 420687073. The reversal of 420687033 is 330786024.

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

It is not a de Polignac number, because 420687033 - 21 = 420687031 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 420686985 and 420687003.

It is not an unprimeable number, because it can be changed into a prime (420687031) 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, 5393385 + ... + 5393462.

It is an arithmetic number, because the mean of its divisors is an integer number (75507936).

Almost surely, 2420687033 is an apocalyptic number.

It is an amenable number.

420687033 is a deficient number, since it is larger than the sum of its proper divisors (183376455).

420687033 is a wasteful number, since it uses less digits than its factorization.

420687033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10786863.

The product of its (nonzero) digits is 24192, while the sum is 33.

The square root of 420687033 is about 20510.6565716459. The cubic root of 420687033 is about 749.2953577353.

The spelling of 420687033 in words is "four hundred twenty million, six hundred eighty-seven thousand, thirty-three".

Divisors: 1 3 13 39 10786847 32360541 140229011 420687033