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420131101 = 1333719587
BaseRepresentation
bin11001000010101…
…011000100011101
31002021112212112011
4121002223010131
51330023143401
6105404511221
713261025005
oct3102530435
91067485464
10420131101
111a6175795
12b884b511
136906c5b0
143db25005
1526d3d451
hex190ab11d

420131101 has 8 divisors (see below), whose sum is σ = 452630304. Its totient is φ = 387657840.

The previous prime is 420131099. The next prime is 420131177. The reversal of 420131101 is 101131024.

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 420131101 - 21 = 420131099 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420135101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39030 + ... + 48616.

It is an arithmetic number, because the mean of its divisors is an integer number (56578788).

Almost surely, 2420131101 is an apocalyptic number.

It is an amenable number.

420131101 is a deficient number, since it is larger than the sum of its proper divisors (32499203).

420131101 is a wasteful number, since it uses less digits than its factorization.

420131101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12971.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 420131101 is about 20497.0998192427. The cubic root of 420131101 is about 748.9651511442.

Adding to 420131101 its reverse (101131024), we get a palindrome (521262125).

The spelling of 420131101 in words is "four hundred twenty million, one hundred thirty-one thousand, one hundred one".

Divisors: 1 13 3371 9587 43823 124631 32317777 420131101