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10022021 = 311512141
BaseRepresentation
bin100110001110…
…110010000101
3200212011121222
4212032302011
510031201041
6554450125
7151120502
oct46166205
920764558
1010022021
115725769
123433945
1320cb8b9
14148c4a9
15d2e74b
hex98ec85

10022021 has 8 divisors (see below), whose sum is σ = 10418688. Its totient is φ = 9630000.

The previous prime is 10022017. The next prime is 10022041. The reversal of 10022021 is 12022001.

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 10022021 - 22 = 10022017 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 (10022011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3611 + ... + 5751.

It is an arithmetic number, because the mean of its divisors is an integer number (1302336).

Almost surely, 210022021 is an apocalyptic number.

It is an amenable number.

10022021 is a deficient number, since it is larger than the sum of its proper divisors (396667).

10022021 is a wasteful number, since it uses less digits than its factorization.

10022021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2323.

The product of its (nonzero) digits is 8, while the sum is 8.

The square root of 10022021 is about 3165.7575712616. The cubic root of 10022021 is about 215.6014957507.

Adding to 10022021 its reverse (12022001), we get a palindrome (22044022).

The spelling of 10022021 in words is "ten million, twenty-two thousand, twenty-one".

Divisors: 1 31 151 2141 4681 66371 323291 10022021