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21030141433 = 712611238229
BaseRepresentation
bin10011100101011111…
…100111110111111001
32000021121220212122011
4103211133213313321
5321032204011213
613354444525521
71343101152460
oct234537476771
960247825564
1021030141433
118a11a6a584
1240aab508a1
131ca1c39292
14103703b9d7
1583140303d
hex4e57e7df9

21030141433 has 8 divisors (see below), whose sum is σ = 24036454080. Its totient is φ = 18024330480.

The previous prime is 21030141427. The next prime is 21030141479. The reversal of 21030141433 is 33414103012.

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 21030141433 - 25 = 21030141401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21030141133) 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, 30838 + ... + 207391.

It is an arithmetic number, because the mean of its divisors is an integer number (3004556760).

Almost surely, 221030141433 is an apocalyptic number.

It is an amenable number.

21030141433 is a deficient number, since it is larger than the sum of its proper divisors (3006312647).

21030141433 is a wasteful number, since it uses less digits than its factorization.

21030141433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250847.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 21030141433 its reverse (33414103012), we get a palindrome (54444244445).

The spelling of 21030141433 in words is "twenty-one billion, thirty million, one hundred forty-one thousand, four hundred thirty-three".

Divisors: 1 7 12611 88277 238229 1667603 3004305919 21030141433