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30231301122 = 232113112893821
BaseRepresentation
bin11100001001111011…
…010000110000000010
32220000212112012212100
4130021323100300002
5443403203113442
621515453411230
72120105551101
oct341173206002
986025465770
1030231301122
1111903865a90
125a38499b16
132b0a28b679
14166b058038
15bbe0b784c
hex709ed0c02

30231301122 has 96 divisors (see below), whose sum is σ = 73837370880. Its totient is φ = 8856288000.

The previous prime is 30231301073. The next prime is 30231301123. The reversal of 30231301122 is 22110313203.

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 = 30231301095 and 30231301104.

It is not an unprimeable number, because it can be changed into a prime (30231301123) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 7909972 + ... + 7913792.

It is an arithmetic number, because the mean of its divisors is an integer number (769139280).

Almost surely, 230231301122 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30231301122, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36918685440).

30231301122 is an abundant number, since it is smaller than the sum of its proper divisors (43606069758).

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

30231301122 is a wasteful number, since it uses less digits than its factorization.

30231301122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5160 (or 5157 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 30231301122 its reverse (22110313203), we get a palindrome (52341614325).

The spelling of 30231301122 in words is "thirty billion, two hundred thirty-one million, three hundred one thousand, one hundred twenty-two".

Divisors: 1 2 3 6 9 11 18 22 31 33 62 66 93 99 186 198 279 341 558 682 1023 1289 2046 2578 3069 3821 3867 6138 7642 7734 11463 11601 14179 22926 23202 28358 34389 39959 42031 42537 68778 79918 84062 85074 118451 119877 126093 127611 236902 239754 252186 255222 355353 359631 378279 439549 710706 719262 756558 879098 1066059 1302961 1318647 2132118 2605922 2637294 3908883 3955941 4925269 7817766 7911882 9850538 11726649 14775807 23453298 29551614 44327421 54177959 88654842 108355918 152683339 162533877 305366678 325067754 458050017 487601631 916100034 975203262 1374150051 1679516729 2748300102 3359033458 5038550187 10077100374 15115650561 30231301122