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20532467 = 473071423
BaseRepresentation
bin100111001010…
…0110011110011
31102122011020202
41032110303303
520224014332
62012025415
7336344264
oct116246363
942564222
1020532467
111065438a
126a6226b
13433b8b7
142a2696b
151c08a62
hex1394cf3

20532467 has 8 divisors (see below), whose sum is σ = 21052416. Its totient is φ = 20016072.

The previous prime is 20532461. The next prime is 20532511. The reversal of 20532467 is 76423502.

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 20532467 - 216 = 20466931 is a prime.

It is a super-2 number, since 2×205324672 = 843164402212178, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20532461) 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, 13718 + ... + 15140.

It is an arithmetic number, because the mean of its divisors is an integer number (2631552).

Almost surely, 220532467 is an apocalyptic number.

20532467 is a deficient number, since it is larger than the sum of its proper divisors (519949).

20532467 is a wasteful number, since it uses less digits than its factorization.

20532467 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1777.

The product of its (nonzero) digits is 10080, while the sum is 29.

The square root of 20532467 is about 4531.2765309568. The cubic root of 20532467 is about 273.8295910576.

Adding to 20532467 its reverse (76423502), we get a palindrome (96955969).

The spelling of 20532467 in words is "twenty million, five hundred thirty-two thousand, four hundred sixty-seven".

Divisors: 1 47 307 1423 14429 66881 436861 20532467