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20331220141 = 311487441053
BaseRepresentation
bin10010111011110101…
…011100110010101101
31221110220202222212101
4102323311130302231
5313114243021031
613201240335101
71316553343201
oct227365346255
957426688771
1020331220141
118693497681
123b34a74491
131bc01b6b9b
14dac2a4b01
157ded95361
hex4bbd5ccad

20331220141 has 8 divisors (see below), whose sum is σ = 21001227264. Its totient is φ = 19662098160.

The previous prime is 20331220099. The next prime is 20331220157. The reversal of 20331220141 is 14102213302.

It is a happy number.

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 20331220141 - 211 = 20331218093 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20331220171) 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, 174430 + ... + 266623.

It is an arithmetic number, because the mean of its divisors is an integer number (2625153408).

Almost surely, 220331220141 is an apocalyptic number.

It is an amenable number.

20331220141 is a deficient number, since it is larger than the sum of its proper divisors (670007123).

20331220141 is a wasteful number, since it uses less digits than its factorization.

20331220141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 442571.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 20331220141 its reverse (14102213302), we get a palindrome (34433433443).

The spelling of 20331220141 in words is "twenty billion, three hundred thirty-one million, two hundred twenty thousand, one hundred forty-one".

Divisors: 1 31 1487 46097 441053 13672643 655845811 20331220141