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20755714580 = 2253133476959
BaseRepresentation
bin10011010101001000…
…110001001000010100
31222120111112112202122
4103111020301020110
5320001430331310
613311322555112
71333226443256
oct232510611024
958514475678
1020755714580
118891072627
124033068a98
131c5a123523
14100c803cd6
15817296555
hex4d5231214

20755714580 has 24 divisors (see below), whose sum is σ = 44993034240. Its totient is φ = 8034469920.

The previous prime is 20755714571. The next prime is 20755714669. The reversal of 20755714580 is 8541755702.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16737860 + ... + 16739099.

It is an arithmetic number, because the mean of its divisors is an integer number (1874709760).

Almost surely, 220755714580 is an apocalyptic number.

20755714580 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20755714580 is an abundant number, since it is smaller than the sum of its proper divisors (24237319660).

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

20755714580 is a wasteful number, since it uses less digits than its factorization.

20755714580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33476999 (or 33476997 counting only the distinct ones).

The product of its (nonzero) digits is 392000, while the sum is 44.

The spelling of 20755714580 in words is "twenty billion, seven hundred fifty-five million, seven hundred fourteen thousand, five hundred eighty".

Divisors: 1 2 4 5 10 20 31 62 124 155 310 620 33476959 66953918 133907836 167384795 334769590 669539180 1037785729 2075571458 4151142916 5188928645 10377857290 20755714580