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420835038 = 231338314087
BaseRepresentation
bin11001000101010…
…110111011011110
31002022212122010220
4121011112323132
51330213210123
6105431542210
713300016211
oct3105267336
91068778126
10420835038
111a6606658
12b8b2a966
1369257b20
143dc69778
1526e2bce3
hex19156ede

420835038 has 32 divisors (see below), whose sum is σ = 908845056. Its totient is φ = 129140448.

The previous prime is 420835033. The next prime is 420835043. The reversal of 420835038 is 830538024.

It is an interprime number because it is at equal distance from previous prime (420835033) and next prime (420835043).

It is a super-2 number, since 2×4208350382 = 354204258416922888, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420835033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22831 + ... + 36917.

It is an arithmetic number, because the mean of its divisors is an integer number (28401408).

Almost surely, 2420835038 is an apocalyptic number.

420835038 is an abundant number, since it is smaller than the sum of its proper divisors (488010018).

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

420835038 is a wasteful number, since it uses less digits than its factorization.

420835038 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14488.

The product of its (nonzero) digits is 23040, while the sum is 33.

The square root of 420835038 is about 20514.2642568531. The cubic root of 420835038 is about 749.3832191364.

The spelling of 420835038 in words is "four hundred twenty million, eight hundred thirty-five thousand, thirty-eight".

Divisors: 1 2 3 6 13 26 39 78 383 766 1149 2298 4979 9958 14087 14937 28174 29874 42261 84522 183131 366262 549393 1098786 5395321 10790642 16185963 32371926 70139173 140278346 210417519 420835038