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122142030330 = 23553149515563
BaseRepresentation
bin111000111000000111…
…0110111100111111010
3102200021021210000201010
41301300032313213322
54000121324432310
6132040011334350
711552536061535
oct1616016674772
9380237700633
10122142030330
1147888aa0221
121b8091513b6
13b696bccc38
145ca9a13a1c
15329d071320
hex1c703b79fa

122142030330 has 64 divisors (see below), whose sum is σ = 300676924800. Its totient is φ = 31742121216.

The previous prime is 122142030313. The next prime is 122142030331. The reversal of 122142030330 is 33030241221.

It is a junction number, because it is equal to n+sod(n) for n = 122142030297 and 122142030306.

It is not an unprimeable number, because it can be changed into a prime (122142030331) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20872 + ... + 494691.

It is an arithmetic number, because the mean of its divisors is an integer number (4698076950).

Almost surely, 2122142030330 is an apocalyptic number.

122142030330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 122142030330, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (150338462400).

122142030330 is an abundant number, since it is smaller than the sum of its proper divisors (178534894470).

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

122142030330 is a wasteful number, since it uses less digits than its factorization.

122142030330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 515775.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 122142030330 its reverse (33030241221), we get a palindrome (155172271551).

The spelling of 122142030330 in words is "one hundred twenty-two billion, one hundred forty-two million, thirty thousand, three hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 53 106 149 159 265 298 318 447 530 745 795 894 1490 1590 2235 4470 7897 15794 23691 39485 47382 78970 118455 236910 515563 1031126 1546689 2577815 3093378 5155630 7733445 15466890 27324839 54649678 76818887 81974517 136624195 153637774 163949034 230456661 273248390 384094435 409872585 460913322 768188870 819745170 1152283305 2304566610 4071401011 8142802022 12214203033 20357005055 24428406066 40714010110 61071015165 122142030330