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20300021413 = 75281549139
BaseRepresentation
bin10010111001111110…
…011011111010100101
31221101202001221020221
4102321332123322211
5313033301141123
613154203524341
71316024222620
oct227176337245
957352057227
1020300021413
118677918601
123b265296b1
131bb68b23b9
14da80a2db7
157dc28125d
hex4b9f9bea5

20300021413 has 8 divisors (see below), whose sum is σ = 23204459840. Its totient is φ = 17396691840.

The previous prime is 20300021383. The next prime is 20300021429. The reversal of 20300021413 is 31412000302.

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 20300021413 - 217 = 20299890341 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 (20300021713) 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, 237603 + ... + 311536.

It is an arithmetic number, because the mean of its divisors is an integer number (2900557480).

Almost surely, 220300021413 is an apocalyptic number.

It is an amenable number.

20300021413 is a deficient number, since it is larger than the sum of its proper divisors (2904438427).

20300021413 is an equidigital number, since it uses as much as digits as its factorization.

20300021413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 554427.

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 20300021413 its reverse (31412000302), we get a palindrome (51712021715).

The spelling of 20300021413 in words is "twenty billion, three hundred million, twenty-one thousand, four hundred thirteen".

Divisors: 1 7 5281 36967 549139 3843973 2900003059 20300021413