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20327475246 = 23131715329921
BaseRepresentation
bin10010111011100111…
…001010100000101110
31221110122201201211120
4102323213022200232
5313112313201441
613201024201410
71316506455141
oct227347124056
957418651746
1020327475246
11869136a021
123b33769266
131bbc4a5480
14dab9ac058
157de8a5966
hex4bb9ca82e

20327475246 has 32 divisors (see below), whose sum is σ = 46357684128. Its totient is φ = 5886689280.

The previous prime is 20327475241. The next prime is 20327475271. The reversal of 20327475246 is 64257472302.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 20327475198 and 20327475207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20327475241) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7663635 + ... + 7666286.

It is an arithmetic number, because the mean of its divisors is an integer number (1448677629).

Almost surely, 220327475246 is an apocalyptic number.

20327475246 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

20327475246 is an abundant number, since it is smaller than the sum of its proper divisors (26030208882).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20327475246 is a wasteful number, since it uses less digits than its factorization.

20327475246 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15329956.

The product of its (nonzero) digits is 564480, while the sum is 42.

The spelling of 20327475246 in words is "twenty billion, three hundred twenty-seven million, four hundred seventy-five thousand, two hundred forty-six".

Divisors: 1 2 3 6 13 17 26 34 39 51 78 102 221 442 663 1326 15329921 30659842 45989763 91979526 199288973 260608657 398577946 521217314 597866919 781825971 1195733838 1563651942 3387912541 6775825082 10163737623 20327475246