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20342120213 = 73292795203
BaseRepresentation
bin10010111100011111…
…000001111100010101
31221111200021202221202
4102330133001330111
5313130040321323
613202310122245
71320045111632
oct227437017425
957450252852
1020342120213
118699661aa8
123b38650385
131bc253232c
14dad901189
157e0ce9d28
hex4bc7c1f15

20342120213 has 8 divisors (see below), whose sum is σ = 20628041088. Its totient is φ = 20056395744.

The previous prime is 20342120203. The next prime is 20342120251. The reversal of 20342120213 is 31202124302.

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 20342120213 - 224 = 20325342997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20342120203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 166070 + ... + 261272.

It is an arithmetic number, because the mean of its divisors is an integer number (2578505136).

Almost surely, 220342120213 is an apocalyptic number.

It is an amenable number.

20342120213 is a deficient number, since it is larger than the sum of its proper divisors (285920875).

20342120213 is an equidigital number, since it uses as much as digits as its factorization.

20342120213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98203.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 20342120213 its reverse (31202124302), we get a palindrome (51544244515).

The spelling of 20342120213 in words is "twenty billion, three hundred forty-two million, one hundred twenty thousand, two hundred thirteen".

Divisors: 1 73 2927 95203 213671 6949819 278659181 20342120213