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20364051 = 352312979
BaseRepresentation
bin100110110101…
…1101100010011
31102022121020010
41031223230103
520203122201
62004250003
7335043261
oct115535423
942277203
1020364051
11105498a4
1269a0903
1342b0046
1429c1431
151bc3bd6
hex136bb13

20364051 has 8 divisors (see below), whose sum is σ = 27206080. Its totient is φ = 13549032.

The previous prime is 20364037. The next prime is 20364073. The reversal of 20364051 is 15046302.

It is a happy number.

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

It is not a de Polignac number, because 20364051 - 211 = 20362003 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20364151) 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, 4921 + ... + 8058.

It is an arithmetic number, because the mean of its divisors is an integer number (3400760).

Almost surely, 220364051 is an apocalyptic number.

20364051 is a deficient number, since it is larger than the sum of its proper divisors (6842029).

20364051 is a wasteful number, since it uses less digits than its factorization.

20364051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13505.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 20364051 is about 4512.6545402900. The cubic root of 20364051 is about 273.0788458544.

The spelling of 20364051 in words is "twenty million, three hundred sixty-four thousand, fifty-one".

Divisors: 1 3 523 1569 12979 38937 6788017 20364051