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21202310001 = 326572659931
BaseRepresentation
bin10011101111110000…
…011001001101110001
32000201121212221111210
4103233300121031301
5321410242410001
613423515030333
71350261442605
oct235760311561
960647787453
1021202310001
118aa0173354
12413873b3a9
131ccb7ca682
141051c57505
158415b0dd6
hex4efc19371

21202310001 has 8 divisors (see below), whose sum is σ = 28280397024. Its totient is φ = 14129548160.

The previous prime is 21202309967. The next prime is 21202310029. The reversal of 21202310001 is 10001320212.

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 21202310001 - 210 = 21202308977 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (21202310071) 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, 1321995 + ... + 1337936.

It is an arithmetic number, because the mean of its divisors is an integer number (3535049628).

Almost surely, 221202310001 is an apocalyptic number.

It is an amenable number.

21202310001 is a deficient number, since it is larger than the sum of its proper divisors (7078087023).

21202310001 is a wasteful number, since it uses less digits than its factorization.

21202310001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2662591.

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 21202310001 its reverse (10001320212), we get a palindrome (31203630213).

The spelling of 21202310001 in words is "twenty-one billion, two hundred two million, three hundred ten thousand, one".

Divisors: 1 3 2657 7971 2659931 7979793 7067436667 21202310001