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20364361 = 231098123
BaseRepresentation
bin100110110101…
…1110001001001
31102022121122121
41031223301021
520203124421
62004251241
7335044213
oct115536111
942277577
1020364361
111054a056
1269a0b21
1342b0224
1429c15b3
151bc3d41
hex136bc49

20364361 has 8 divisors (see below), whose sum is σ = 21447360. Its totient is φ = 19297872.

The previous prime is 20364341. The next prime is 20364373. The reversal of 20364361 is 16346302.

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 20364361 - 25 = 20364329 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20364341) 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, 1555 + ... + 6568.

It is an arithmetic number, because the mean of its divisors is an integer number (2680920).

Almost surely, 220364361 is an apocalyptic number.

It is an amenable number.

20364361 is a deficient number, since it is larger than the sum of its proper divisors (1082999).

20364361 is a wasteful number, since it uses less digits than its factorization.

20364361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8255.

The product of its (nonzero) digits is 2592, while the sum is 25.

The square root of 20364361 is about 4512.6888880134. The cubic root of 20364361 is about 273.0802315318.

The spelling of 20364361 in words is "twenty million, three hundred sixty-four thousand, three hundred sixty-one".

Divisors: 1 23 109 2507 8123 186829 885407 20364361