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20352041213 = 72907434459
BaseRepresentation
bin10010111101000100…
…111000000011111101
31221112100221211000012
4102331010320003331
5313140110304323
613203302513005
71320225332060
oct227504700375
957470854005
1020352041213
1186a4218879
123b3ba35765
131bc45c6c4a
14db0d648d7
157e1b09678
hex4bd1380fd

20352041213 has 4 divisors (see below), whose sum is σ = 23259475680. Its totient is φ = 17444606748.

The previous prime is 20352041201. The next prime is 20352041267. The reversal of 20352041213 is 31214025302.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20352041213 - 218 = 20351779069 is a prime.

It is a super-2 number, since 2×203520412132 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20352041293) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1453717223 + ... + 1453717236.

It is an arithmetic number, because the mean of its divisors is an integer number (5814868920).

Almost surely, 220352041213 is an apocalyptic number.

It is an amenable number.

20352041213 is a deficient number, since it is larger than the sum of its proper divisors (2907434467).

20352041213 is an equidigital number, since it uses as much as digits as its factorization.

20352041213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2907434466.

The product of its (nonzero) digits is 1440, while the sum is 23.

Adding to 20352041213 its reverse (31214025302), we get a palindrome (51566066515).

The spelling of 20352041213 in words is "twenty billion, three hundred fifty-two million, forty-one thousand, two hundred thirteen".

Divisors: 1 7 2907434459 20352041213