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23221020130 = 2572116764301
BaseRepresentation
bin10101101000000101…
…001010010111100010
32012221022110001012121
4111220011022113202
5340024040121010
614400111014454
71451303262100
oct255005122742
965838401177
1023221020130
11993672a130
12460080a42a
132260ac5cc9
1411a3dc2c70
1590d91c3da
hex56814a5e2

23221020130 has 96 divisors (see below), whose sum is σ = 53834663232. Its totient is φ = 7129584000.

The previous prime is 23221020101. The next prime is 23221020131. The reversal of 23221020130 is 3102012232.

It is not an unprimeable number, because it can be changed into a prime (23221020131) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 328980 + ... + 393280.

It is an arithmetic number, because the mean of its divisors is an integer number (560777742).

Almost surely, 223221020130 is an apocalyptic number.

23221020130 is an abundant number, since it is smaller than the sum of its proper divisors (30613643102).

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

23221020130 is a wasteful number, since it uses less digits than its factorization.

23221020130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64400 (or 64393 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 23221020130 its reverse (3102012232), we get a palindrome (26323032362).

The spelling of 23221020130 in words is "twenty-three billion, two hundred twenty-one million, twenty thousand, one hundred thirty".

Divisors: 1 2 5 7 10 11 14 22 35 49 55 67 70 77 98 110 134 154 245 335 385 469 490 539 670 737 770 938 1078 1474 2345 2695 3283 3685 4690 5159 5390 6566 7370 10318 16415 25795 32830 36113 51590 64301 72226 128602 180565 321505 361130 450107 643010 707311 900214 1414622 2250535 3150749 3536555 4308167 4501070 4951177 6301498 7073110 8616334 9902354 15753745 21540835 24755885 30157169 31507490 34658239 43081670 47389837 49511770 60314338 69316478 94779674 150785845 173291195 211100183 236949185 301571690 331728859 346582390 422200366 473898370 663457718 1055500915 1658644295 2111001830 2322102013 3317288590 4644204026 11610510065 23221020130