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420650930 = 25753113383
BaseRepresentation
bin11001000100101…
…001111110110010
31002022112021121002
4121010221332302
51330141312210
6105424002002
713265321360
oct3104517662
91068467532
10420650930
111a64a02a7
12b8a60302
13691c209b
143dc1c630
1526de24a5
hex19129fb2

420650930 has 32 divisors (see below), whose sum is σ = 881673984. Its totient is φ = 141500736.

The previous prime is 420650927. The next prime is 420650953. The reversal of 420650930 is 39056024.

It is a junction number, because it is equal to n+sod(n) for n = 420650893 and 420650902.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52982 + ... + 60401.

It is an arithmetic number, because the mean of its divisors is an integer number (27552312).

Almost surely, 2420650930 is an apocalyptic number.

420650930 is an abundant number, since it is smaller than the sum of its proper divisors (461023054).

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

420650930 is a wasteful number, since it uses less digits than its factorization.

420650930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113450.

The product of its (nonzero) digits is 6480, while the sum is 29.

The square root of 420650930 is about 20509.7764492936. The cubic root of 420650930 is about 749.2739224940.

The spelling of 420650930 in words is "four hundred twenty million, six hundred fifty thousand, nine hundred thirty".

Divisors: 1 2 5 7 10 14 35 53 70 106 265 371 530 742 1855 3710 113383 226766 566915 793681 1133830 1587362 3968405 6009299 7936810 12018598 30046495 42065093 60092990 84130186 210325465 420650930