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20302131330120 = 2335397517425603
BaseRepresentation
bin1001001110110111101010…
…10100110111110001001000
32122212212100102212022200110
410213123311110313301020
510130112231110030440
6111102400445034320
74163531511656553
oct447336524676110
978785312768613
1020302131330120
1165180a3951192
12233a8328559a0
13b4363784ca13
145028b248369a
152531896ea080
hex1276f5537c48

20302131330120 has 64 divisors (see below), whose sum is σ = 60906690313920. Its totient is φ = 5413875348224.

The previous prime is 20302131330017. The next prime is 20302131330133. The reversal of 20302131330120 is 2103313120302.

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, 47489239 + ... + 47914841.

It is an arithmetic number, because the mean of its divisors is an integer number (951667036155).

Almost surely, 220302131330120 is an apocalyptic number.

20302131330120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20302131330120 is an abundant number, since it is smaller than the sum of its proper divisors (40604558983800).

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

20302131330120 is a wasteful number, since it uses less digits than its factorization.

20302131330120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 823134 (or 823130 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 20302131330120 its reverse (2103313120302), we get a palindrome (22405444450422).

The spelling of 20302131330120 in words is "twenty trillion, three hundred two billion, one hundred thirty-one million, three hundred thirty thousand, one hundred twenty".

Divisors: 1 2 3 4 5 6 8 10 12 15 20 24 30 40 60 120 397517 425603 795034 851206 1192551 1276809 1590068 1702412 1987585 2128015 2385102 2553618 3180136 3404824 3975170 4256030 4770204 5107236 5962755 6384045 7950340 8512060 9540408 10214472 11925510 12768090 15900680 17024120 23851020 25536180 47702040 51072360 169184427751 338368855502 507553283253 676737711004 845922138755 1015106566506 1353475422008 1691844277510 2030213133012 2537766416265 3383688555020 4060426266024 5075532832530 6767377110040 10151065665060 20302131330120