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21142430301 = 331122660697
BaseRepresentation
bin10011101100001011…
…111110001001011101
32000120110012202000010
4103230023332021131
5321244430232201
613413535353433
71345633456326
oct235413761135
960513182003
1021142430301
118a6a3948a3
124120682879
131cbc2933b5
141047d0b44d
1583b1d3bd6
hex4ec2fe25d

21142430301 has 8 divisors (see below), whose sum is σ = 28280551104. Its totient is φ = 14049631520.

The previous prime is 21142430297. The next prime is 21142430327. The reversal of 21142430301 is 10303424112.

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 21142430301 - 22 = 21142430297 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21142430381) 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, 11329416 + ... + 11331281.

It is an arithmetic number, because the mean of its divisors is an integer number (3535068888).

Almost surely, 221142430301 is an apocalyptic number.

It is an amenable number.

21142430301 is a deficient number, since it is larger than the sum of its proper divisors (7138120803).

21142430301 is a wasteful number, since it uses less digits than its factorization.

21142430301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22661011.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 21142430301 its reverse (10303424112), we get a palindrome (31445854413).

The spelling of 21142430301 in words is "twenty-one billion, one hundred forty-two million, four hundred thirty thousand, three hundred one".

Divisors: 1 3 311 933 22660697 67982091 7047476767 21142430301