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420131003 = 3195314221
BaseRepresentation
bin11001000010101…
…011000010111011
31002021112212101112
4121002223002323
51330023143003
6105404510535
713261024505
oct3102530273
91067485345
10420131003
111a6175706
12b884b44b
136906c536
143db24d75
1526d3d3d8
hex190ab0bb

420131003 has 8 divisors (see below), whose sum is σ = 434169216. Its totient is φ = 406123200.

The previous prime is 420130999. The next prime is 420131039. The reversal of 420131003 is 300131024.

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 420131003 - 22 = 420130999 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (420131083) 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, 22433 + ... + 36653.

It is an arithmetic number, because the mean of its divisors is an integer number (54271152).

Almost surely, 2420131003 is an apocalyptic number.

420131003 is a deficient number, since it is larger than the sum of its proper divisors (14038213).

420131003 is a wasteful number, since it uses less digits than its factorization.

420131003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15205.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 420131003 is about 20497.0974286605. The cubic root of 420131003 is about 748.9650929096.

Adding to 420131003 its reverse (300131024), we get a palindrome (720262027).

The spelling of 420131003 in words is "four hundred twenty million, one hundred thirty-one thousand, three".

Divisors: 1 31 953 14221 29543 440851 13552613 420131003