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20120203110 = 2357231441523
BaseRepresentation
bin10010101111010000…
…011110111101100110
31220221012201012220210
4102233100132331212
5312201232444420
613124301440250
71311411622200
oct225720367546
956835635823
1020120203110
11859536a437
123a96270086
131b88573137
14d8c255770
157cb5b19e0
hex4af41ef66

20120203110 has 96 divisors (see below), whose sum is σ = 57984463872. Its totient is φ = 4450541760.

The previous prime is 20120203109. The next prime is 20120203111. The reversal of 20120203110 is 1130202102.

It is an interprime number because it is at equal distance from previous prime (20120203109) and next prime (20120203111).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20120203111) 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, 175192 + ... + 266331.

It is an arithmetic number, because the mean of its divisors is an integer number (604004832).

Almost surely, 220120203110 is an apocalyptic number.

20120203110 is an abundant number, since it is smaller than the sum of its proper divisors (37864260762).

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

20120203110 is a wasteful number, since it uses less digits than its factorization.

20120203110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 441578 (or 441571 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 20120203110 its reverse (1130202102), we get a palindrome (21250405212).

The spelling of 20120203110 in words is "twenty billion, one hundred twenty million, two hundred three thousand, one hundred ten".

Divisors: 1 2 3 5 6 7 10 14 15 21 30 31 35 42 49 62 70 93 98 105 147 155 186 210 217 245 294 310 434 465 490 651 735 930 1085 1302 1470 1519 2170 3038 3255 4557 6510 7595 9114 15190 22785 45570 441523 883046 1324569 2207615 2649138 3090661 4415230 6181322 6622845 9271983 13245690 13687213 15453305 18543966 21634627 27374426 30906610 41061639 43269254 46359915 64903881 68436065 82123278 92719830 95810491 108173135 129807762 136872130 191620982 205308195 216346270 287431473 324519405 410616390 479052455 574862946 649038810 670673437 958104910 1341346874 1437157365 2012020311 2874314730 3353367185 4024040622 6706734370 10060101555 20120203110