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20327475245 = 571173723269
BaseRepresentation
bin10010111011100111…
…001010100000101101
31221110122201201211112
4102323213022200231
5313112313201440
613201024201405
71316506455140
oct227347124055
957418651745
1020327475245
11869136a020
123b33769265
131bbc4a547c
14dab9ac057
157de8a5965
hex4bb9ca82d

20327475245 has 32 divisors (see below), whose sum is σ = 30828660480. Its totient is φ = 12498071040.

The previous prime is 20327475241. The next prime is 20327475271. The reversal of 20327475245 is 54257472302.

It is not a de Polignac number, because 20327475245 - 22 = 20327475241 is a prime.

It is a Curzon number.

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 31 ways as a sum of consecutive naturals, for example, 333530 + ... + 389739.

It is an arithmetic number, because the mean of its divisors is an integer number (963395640).

Almost surely, 220327475245 is an apocalyptic number.

It is an amenable number.

20327475245 is a deficient number, since it is larger than the sum of its proper divisors (10501185235).

20327475245 is a wasteful number, since it uses less digits than its factorization.

20327475245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 723365.

The product of its (nonzero) digits is 470400, while the sum is 41.

The spelling of 20327475245 in words is "twenty billion, three hundred twenty-seven million, four hundred seventy-five thousand, two hundred forty-five".

Divisors: 1 5 7 11 35 55 73 77 365 385 511 803 2555 4015 5621 28105 723269 3616345 5062883 7955959 25314415 39779795 52798637 55691713 263993185 278458565 369590459 580785007 1847952295 2903925035 4065495049 20327475245