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20120500230120 = 23325311802912207
BaseRepresentation
bin1001001001100101010110…
…10001001101011111101000
32122020111112020220102212200
410210302223101031133220
510114123241024330440
6110443121420140200
74144441516050063
oct444625321153750
978214466812780
1020120500230120
116458068926484
12230b5a2997660
13b2c480003b54
144d7ba1bb98da
1524d5a8becc30
hex124cab44d7e8

20120500230120 has 96 divisors (see below), whose sum is σ = 67501033067520. Its totient is φ = 5192387153280.

The previous prime is 20120500230029. The next prime is 20120500230169. The reversal of 20120500230120 is 2103200502102.

20120500230120 is a `hidden beast` number, since 2 + 0 + 1 + 20 + 500 + 23 + 0 + 120 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 20120500230093 and 20120500230102.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 901444944 + ... + 901467263.

It is an arithmetic number, because the mean of its divisors is an integer number (703135761120).

Almost surely, 220120500230120 is an apocalyptic number.

20120500230120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20120500230120 is an abundant number, since it is smaller than the sum of its proper divisors (47380532837400).

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

20120500230120 is a wasteful number, since it uses less digits than its factorization.

20120500230120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1802912255 (or 1802912248 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

Adding to 20120500230120 its reverse (2103200502102), we get a palindrome (22223700732222).

The spelling of 20120500230120 in words is "twenty trillion, one hundred twenty billion, five hundred million, two hundred thirty thousand, one hundred twenty".

Divisors: 1 2 3 4 5 6 8 9 10 12 15 18 20 24 30 31 36 40 45 60 62 72 90 93 120 124 155 180 186 248 279 310 360 372 465 558 620 744 930 1116 1240 1395 1860 2232 2790 3720 5580 11160 1802912207 3605824414 5408736621 7211648828 9014561035 10817473242 14423297656 16226209863 18029122070 21634946484 27043683105 32452419726 36058244140 43269892968 54087366210 55890278417 64904839452 72116488280 81131049315 108174732420 111780556834 129809678904 162262098630 167670835251 216349464840 223561113668 279451392085 324524197260 335341670502 447122227336 503012505753 558902784170 649048394520 670683341004 838354176255 1006025011506 1117805568340 1341366682008 1676708352510 2012050023012 2235611136680 2515062528765 3353416705020 4024100046024 5030125057530 6706833410040 10060250115060 20120500230120