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20120104230 = 2351455146091
BaseRepresentation
bin10010101111010000…
…000110110100100110
31220221012112012021120
4102233100012310212
5312201221313410
613124255354410
71311411031002
oct225720066446
956835465246
1020120104230
118595302116
123a96222a06
131b8853a125
14d8c22b702
157cb592570
hex4af406d26

20120104230 has 32 divisors (see below), whose sum is σ = 48292616448. Its totient is φ = 5364876000.

The previous prime is 20120104223. The next prime is 20120104241. The reversal of 20120104230 is 3240102102.

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

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, 413485 + ... + 459575.

It is an arithmetic number, because the mean of its divisors is an integer number (1509144264).

Almost surely, 220120104230 is an apocalyptic number.

20120104230 is an abundant number, since it is smaller than the sum of its proper divisors (28172512218).

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

20120104230 is a wasteful number, since it uses less digits than its factorization.

20120104230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60652.

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 20120104230 its reverse (3240102102), we get a palindrome (23360206332).

The spelling of 20120104230 in words is "twenty billion, one hundred twenty million, one hundred four thousand, two hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 14551 29102 43653 46091 72755 87306 92182 138273 145510 218265 230455 276546 436530 460910 691365 1382730 670670141 1341340282 2012010423 3353350705 4024020846 6706701410 10060052115 20120104230