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30120322122 = 2331124609783
BaseRepresentation
bin11100000011010011…
…111010010001001010
32212202010200220022000
4130003103322101022
5443141300301442
621500451011430
72114260341132
oct340323722112
985663626260
1030120322122
1111857155900
125a07299b76
132ac02a2817
14165a409ac2
15bb4494d4c
hex7034fa44a

30120322122 has 48 divisors (see below), whose sum is σ = 73572152640. Its totient is φ = 9127368360.

The previous prime is 30120322117. The next prime is 30120322159. The reversal of 30120322122 is 22122302103.

30120322122 is a `hidden beast` number, since 301 + 20 + 322 + 1 + 22 = 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 = 30120322095 and 30120322104.

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, 2298358 + ... + 2311425.

It is an arithmetic number, because the mean of its divisors is an integer number (1532753180).

Almost surely, 230120322122 is an apocalyptic number.

30120322122 is an abundant number, since it is smaller than the sum of its proper divisors (43451830518).

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

30120322122 is a wasteful number, since it uses less digits than its factorization.

30120322122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4609816 (or 4609799 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 30120322122 its reverse (22122302103), we get a palindrome (52242624225).

The spelling of 30120322122 in words is "thirty billion, one hundred twenty million, three hundred twenty-two thousand, one hundred twenty-two".

Divisors: 1 2 3 6 9 11 18 22 27 33 54 66 99 121 198 242 297 363 594 726 1089 2178 3267 6534 4609783 9219566 13829349 27658698 41488047 50707613 82976094 101415226 124464141 152122839 248928282 304245678 456368517 557783743 912737034 1115567486 1369105551 1673351229 2738211102 3346702458 5020053687 10040107374 15060161061 30120322122