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30020321120 = 255187627007
BaseRepresentation
bin11011111101010110…
…011011111101100000
32212111011112022201012
4123331112123331200
5442440200233440
621442515400052
72111634343046
oct337526337540
985434468635
1030020321120
1111805763649
1259998b3028
132aa565b72a
14164b018396
15baa7dee65
hex6fd59bf60

30020321120 has 24 divisors (see below), whose sum is σ = 70923009024. Its totient is φ = 12008128384.

The previous prime is 30020321113. The next prime is 30020321137. The reversal of 30020321120 is 2112302003.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 30020321095 and 30020321104.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 93813344 + ... + 93813663.

It is an arithmetic number, because the mean of its divisors is an integer number (2955125376).

Almost surely, 230020321120 is an apocalyptic number.

It is an amenable number.

30020321120 is an abundant number, since it is smaller than the sum of its proper divisors (40902687904).

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

30020321120 is a wasteful number, since it uses less digits than its factorization.

30020321120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187627022 (or 187627014 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 30020321120 its reverse (2112302003), we get a palindrome (32132623123).

The spelling of 30020321120 in words is "thirty billion, twenty million, three hundred twenty-one thousand, one hundred twenty".

Divisors: 1 2 4 5 8 10 16 20 32 40 80 160 187627007 375254014 750508028 938135035 1501016056 1876270070 3002032112 3752540140 6004064224 7505080280 15010160560 30020321120