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21483701 = 1271391217
BaseRepresentation
bin101000111110…
…1000010110101
31111102111002122
41101331002311
520444434301
62044245325
7350415461
oct121750265
944374078
1021483701
1111144028
127240845
1345b2865
142bd34a1
151d4581b
hex147d0b5

21483701 has 8 divisors (see below), whose sum is σ = 21826560. Its totient is φ = 21143808.

The previous prime is 21483697. The next prime is 21483719. The reversal of 21483701 is 10738412.

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 21483701 - 22 = 21483697 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 (21483731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17045 + ... + 18261.

It is an arithmetic number, because the mean of its divisors is an integer number (2728320).

Almost surely, 221483701 is an apocalyptic number.

It is an amenable number.

21483701 is a deficient number, since it is larger than the sum of its proper divisors (342859).

21483701 is a wasteful number, since it uses less digits than its factorization.

21483701 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1483.

The product of its (nonzero) digits is 1344, while the sum is 26.

The square root of 21483701 is about 4635.0513481514. The cubic root of 21483701 is about 277.9946042118.

The spelling of 21483701 in words is "twenty-one million, four hundred eighty-three thousand, seven hundred one".

Divisors: 1 127 139 1217 17653 154559 169163 21483701