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20602293 = 322730253
BaseRepresentation
bin100111010010…
…1110110110101
31102202201000220
41032211312311
520233233133
62013324553
7340054665
oct116456665
942681026
1020602293
11106a1898
126a96759
13436460a
142a441a5
151c1e5b3
hex13a5db5

20602293 has 8 divisors (see below), whose sum is σ = 27591648. Its totient is φ = 13673904.

The previous prime is 20602291. The next prime is 20602297. The reversal of 20602293 is 39220602.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20602293 - 21 = 20602291 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20602291) 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, 14446 + ... + 15807.

It is an arithmetic number, because the mean of its divisors is an integer number (3448956).

Almost surely, 220602293 is an apocalyptic number.

It is an amenable number.

20602293 is a deficient number, since it is larger than the sum of its proper divisors (6989355).

20602293 is a wasteful number, since it uses less digits than its factorization.

20602293 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30483.

The product of its (nonzero) digits is 1296, while the sum is 24.

The square root of 20602293 is about 4538.9748842663. The cubic root of 20602293 is about 274.1396494515.

Adding to 20602293 its reverse (39220602), we get a palindrome (59822895).

The spelling of 20602293 in words is "twenty million, six hundred two thousand, two hundred ninety-three".

Divisors: 1 3 227 681 30253 90759 6867431 20602293