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20738084508 = 2233171931127151
BaseRepresentation
bin10011010100000101…
…100000111010011100
31222112021100211212000
4103110011200322130
5314432422201013
613305453042300
71332623544531
oct232405407234
958467324760
1020738084508
118882120919
124029186390
131c5658ca2b
14100a334d88
15815962973
hex4d4160e9c

20738084508 has 384 divisors, whose sum is σ = 62757273600. Its totient is φ = 5878656000.

The previous prime is 20738084503. The next prime is 20738084513. The reversal of 20738084508 is 80548083702.

It is an interprime number because it is at equal distance from previous prime (20738084503) and next prime (20738084513).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20738084503) 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, 137338233 + ... + 137338383.

It is an arithmetic number, because the mean of its divisors is an integer number (163430400).

Almost surely, 220738084508 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 20738084508, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31378636800).

20738084508 is an abundant number, since it is smaller than the sum of its proper divisors (42019189092).

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

20738084508 is a wasteful number, since it uses less digits than its factorization.

20738084508 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 358 (or 350 counting only the distinct ones).

The product of its (nonzero) digits is 430080, while the sum is 45.

The spelling of 20738084508 in words is "twenty billion, seven hundred thirty-eight million, eighty-four thousand, five hundred eight".