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20883204108 = 223313235997113
BaseRepresentation
bin10011011100101111…
…000110100000001100
31222220101102200112000
4103130233012200030
5320232100012413
613332115312300
71336335206664
oct233457064014
958811380460
1020883204108
11894702a378
1240698ab690
131c7a670410
14102170d1a4
1582357b073
hex4dcbc680c

20883204108 has 384 divisors, whose sum is σ = 63063705600. Its totient is φ = 5926846464.

The previous prime is 20883204103. The next prime is 20883204113. The reversal of 20883204108 is 80140238802.

It is a happy number.

20883204108 is a `hidden beast` number, since 208 + 8 + 32 + 0 + 410 + 8 = 666.

It is an interprime number because it is at equal distance from previous prime (20883204103) and next prime (20883204113).

It is a super-2 number, since 2×208832041082 (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (20883204103) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 184807060 + ... + 184807172.

It is an arithmetic number, because the mean of its divisors is an integer number (164228400).

Almost surely, 220883204108 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20883204108, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31531852800).

20883204108 is an abundant number, since it is smaller than the sum of its proper divisors (42180501492).

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

20883204108 is a wasteful number, since it uses less digits than its factorization.

20883204108 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 318 (or 310 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 36.

The spelling of 20883204108 in words is "twenty billion, eight hundred eighty-three million, two hundred four thousand, one hundred eight".