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420637341 = 3178247791
BaseRepresentation
bin11001000100100…
…110101010011101
31002022111120221210
4121010212222131
51330140343331
6105423415033
713265233635
oct3104465235
91068446853
10420637341
111a6491073
12b8a54479
13691b8b47
143dc176c5
1526ddd446
hex19126a9d

420637341 has 8 divisors (see below), whose sum is σ = 593841024. Its totient is φ = 263929280.

The previous prime is 420637339. The next prime is 420637361. The reversal of 420637341 is 143736024.

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

It is a cyclic number.

It is not a de Polignac number, because 420637341 - 21 = 420637339 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 420637299 and 420637308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420637361) 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, 4123845 + ... + 4123946.

It is an arithmetic number, because the mean of its divisors is an integer number (74230128).

Almost surely, 2420637341 is an apocalyptic number.

It is an amenable number.

420637341 is a deficient number, since it is larger than the sum of its proper divisors (173203683).

420637341 is a wasteful number, since it uses less digits than its factorization.

420637341 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8247811.

The product of its (nonzero) digits is 12096, while the sum is 30.

The square root of 420637341 is about 20509.4451655816. The cubic root of 420637341 is about 749.2658540519.

The spelling of 420637341 in words is "four hundred twenty million, six hundred thirty-seven thousand, three hundred forty-one".

Divisors: 1 3 17 51 8247791 24743373 140212447 420637341