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20216800608 = 253429749009
BaseRepresentation
bin10010110101000000…
…111110010101100000
31221011221110212202220
4102311000332111200
5312401000104413
613142032111040
71313663653434
oct226500762540
957157425686
1020216800608
118634947584
123b02695480
131ba2595014
14d9addc9c4
157d4ce3223
hex4b503e560

20216800608 has 48 divisors (see below), whose sum is σ = 53082534960. Its totient is φ = 6737227776.

The previous prime is 20216800601. The next prime is 20216800609. The reversal of 20216800608 is 80600861202.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20216800601) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 388008 + ... + 437016.

It is an arithmetic number, because the mean of its divisors is an integer number (1105886145).

Almost surely, 220216800608 is an apocalyptic number.

It is an amenable number.

20216800608 is an abundant number, since it is smaller than the sum of its proper divisors (32865734352).

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

20216800608 is a wasteful number, since it uses less digits than its factorization.

20216800608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53319 (or 53311 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 33.

The spelling of 20216800608 in words is "twenty billion, two hundred sixteen million, eight hundred thousand, six hundred eight".

Divisors: 1 2 3 4 6 8 12 16 24 32 48 96 4297 8594 12891 17188 25782 34376 49009 51564 68752 98018 103128 137504 147027 196036 206256 294054 392072 412512 588108 784144 1176216 1568288 2352432 4704864 210591673 421183346 631775019 842366692 1263550038 1684733384 2527100076 3369466768 5054200152 6738933536 10108400304 20216800608