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20006498472 = 2333594575081
BaseRepresentation
bin10010101000011110…
…101111000010101000
31220122021202102110220
4102220132233002220
5311433130422342
613105120410040
71305531300612
oct225036570250
956567672426
1020006498472
118537168464
123a64176920
131b6ab4179c
14d7b0d7db2
157c16015ec
hex4a87af0a8

20006498472 has 64 divisors (see below), whose sum is σ = 50275209600. Its totient is φ = 6634398720.

The previous prime is 20006498471. The next prime is 20006498509. The reversal of 20006498472 is 27489460002.

It is a super-2 number, since 2×200064984722 (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20006498471) 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, 3934972 + ... + 3940052.

It is an arithmetic number, because the mean of its divisors is an integer number (785550150).

Almost surely, 220006498472 is an apocalyptic number.

It is an amenable number.

20006498472 is an abundant number, since it is smaller than the sum of its proper divisors (30268711128).

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

20006498472 is a wasteful number, since it uses less digits than its factorization.

20006498472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5906 (or 5902 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 42.

The spelling of 20006498472 in words is "twenty billion, six million, four hundred ninety-eight thousand, four hundred seventy-two".

Divisors: 1 2 3 4 6 8 12 24 359 457 718 914 1077 1371 1436 1828 2154 2742 2872 3656 4308 5081 5484 8616 10162 10968 15243 20324 30486 40648 60972 121944 164063 328126 492189 656252 984378 1312504 1824079 1968756 2322017 3648158 3937512 4644034 5472237 6966051 7296316 9288068 10944474 13932102 14592632 18576136 21888948 27864204 43777896 55728408 833604103 1667208206 2500812309 3334416412 5001624618 6668832824 10003249236 20006498472