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20974301 = 37619293
BaseRepresentation
bin101000000000…
…0101011011101
31110110121022222
41100000223131
520332134201
62025315125
7343164365
oct120005335
943417288
1020974301
1110926337
127035aa5
134464a3a
142add9a5
151c9491b
hex1400add

20974301 has 8 divisors (see below), whose sum is σ = 21896664. Its totient is φ = 20070720.

The previous prime is 20974297. The next prime is 20974307. The reversal of 20974301 is 10347902.

It can be written as a sum of positive squares in 4 ways, for example, as 89401 + 20884900 = 299^2 + 4570^2 .

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 20974301 - 22 = 20974297 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 (20974307) 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, 2390 + ... + 6903.

It is an arithmetic number, because the mean of its divisors is an integer number (2737083).

Almost surely, 220974301 is an apocalyptic number.

It is an amenable number.

20974301 is a deficient number, since it is larger than the sum of its proper divisors (922363).

20974301 is an equidigital number, since it uses as much as digits as its factorization.

20974301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9391.

The product of its (nonzero) digits is 1512, while the sum is 26.

The square root of 20974301 is about 4579.7708457957. The cubic root of 20974301 is about 275.7798294884.

The spelling of 20974301 in words is "twenty million, nine hundred seventy-four thousand, three hundred one".

Divisors: 1 37 61 2257 9293 343841 566873 20974301