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20003023230 = 235898239103
BaseRepresentation
bin10010101000010001…
…011110100101111110
31220122001012212100020
4102220101132211332
5311431233220410
613104514113010
71305456614661
oct225021364576
956561185306
1020003023230
118535204463
123a62b7b766
131b6a1c5a28
14d7a8716d8
157c1166a70
hex4a845e97e

20003023230 has 64 divisors (see below), whose sum is σ = 48610990080. Its totient is φ = 5267218176.

The previous prime is 20003023219. The next prime is 20003023237. The reversal of 20003023230 is 3232030002.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20003023237) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2192859 + ... + 2201961.

It is an arithmetic number, because the mean of its divisors is an integer number (759546720).

Almost surely, 220003023230 is an apocalyptic number.

20003023230 is an abundant number, since it is smaller than the sum of its proper divisors (28607966850).

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

20003023230 is a wasteful number, since it uses less digits than its factorization.

20003023230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10025.

The product of its (nonzero) digits is 216, while the sum is 15.

Adding to 20003023230 its reverse (3232030002), we get a palindrome (23235053232).

The spelling of 20003023230 in words is "twenty billion, three million, twenty-three thousand, two hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 89 178 267 445 534 823 890 1335 1646 2469 2670 4115 4938 8230 9103 12345 18206 24690 27309 45515 54618 73247 91030 136545 146494 219741 273090 366235 439482 732470 810167 1098705 1620334 2197410 2430501 4050835 4861002 7491769 8101670 12152505 14983538 22475307 24305010 37458845 44950614 74917690 112376535 224753070 666767441 1333534882 2000302323 3333837205 4000604646 6667674410 10001511615 20003023230