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21830758000 = 245331352109
BaseRepresentation
bin10100010101001101…
…101110111001110000
32002100102102102002121
4110111031232321300
5324202133224000
614010124524024
71401662244532
oct242515567160
962312372077
1021830758000
119292991667
1242930b0614
13209ba769ac
1410b14c7852
1587b84cb1a
hex51536ee70

21830758000 has 80 divisors (see below), whose sum is σ = 54489726720. Its totient is φ = 8450592000.

The previous prime is 21830757989. The next prime is 21830758043. The reversal of 21830758000 is 85703812.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 114055 + ... + 238054.

It is an arithmetic number, because the mean of its divisors is an integer number (681121584).

Almost surely, 221830758000 is an apocalyptic number.

21830758000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21830758000 is an abundant number, since it is smaller than the sum of its proper divisors (32658968720).

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

21830758000 is a wasteful number, since it uses less digits than its factorization.

21830758000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 352163 (or 352147 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 34.

The spelling of 21830758000 in words is "twenty-one billion, eight hundred thirty million, seven hundred fifty-eight thousand".

Divisors: 1 2 4 5 8 10 16 20 25 31 40 50 62 80 100 124 125 155 200 248 250 310 400 496 500 620 775 1000 1240 1550 2000 2480 3100 3875 6200 7750 12400 15500 31000 62000 352109 704218 1408436 1760545 2816872 3521090 5633744 7042180 8802725 10915379 14084360 17605450 21830758 28168720 35210900 43661516 44013625 54576895 70421800 87323032 88027250 109153790 140843600 174646064 176054500 218307580 272884475 352109000 436615160 545768950 704218000 873230320 1091537900 1364422375 2183075800 2728844750 4366151600 5457689500 10915379000 21830758000