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420134510 = 2543977057
BaseRepresentation
bin11001000010101…
…011111001101110
31002021120001012102
4121002223321232
51330023301020
6105404535102
713261040645
oct3102537156
91067501172
10420134510
111a6178304
12b8851492
1369071003
143db2635c
1526d3e475
hex190abe6e

420134510 has 16 divisors (see below), whose sum is σ = 773829936. Its totient is φ = 164145408.

The previous prime is 420134431. The next prime is 420134543. The reversal of 420134510 is 15431024.

It is a Curzon number.

It is a congruent 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, 488099 + ... + 488958.

It is an arithmetic number, because the mean of its divisors is an integer number (48364371).

Almost surely, 2420134510 is an apocalyptic number.

420134510 is a deficient number, since it is larger than the sum of its proper divisors (353695426).

420134510 is a wasteful number, since it uses less digits than its factorization.

420134510 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 977107.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 420134510 is about 20497.1829771801. The cubic root of 420134510 is about 748.9671768733.

Adding to 420134510 its reverse (15431024), we get a palindrome (435565534).

The spelling of 420134510 in words is "four hundred twenty million, one hundred thirty-four thousand, five hundred ten".

Divisors: 1 2 5 10 43 86 215 430 977057 1954114 4885285 9770570 42013451 84026902 210067255 420134510