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30233440120 = 23513439113241
BaseRepresentation
bin11100001010000011…
…011010111101111000
32220001000112220000111
4130022003122331320
5443404230040440
621520011314104
72120133000202
oct341203327570
986030486014
1030233440120
1111904a97054
125a3914b934
132b0a85a150
14166b453772
15bbe38b4ea
hex70a0daf78

30233440120 has 64 divisors (see below), whose sum is σ = 73280168640. Its totient is φ = 11159731200.

The previous prime is 30233440109. The next prime is 30233440123. The reversal of 30233440120 is 2104433203.

It is a happy number.

It is a super-2 number, since 2×302334401202 (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 30233440091 and 30233440100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30233440123) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2276700 + ... + 2289940.

It is an arithmetic number, because the mean of its divisors is an integer number (1145002635).

Almost surely, 230233440120 is an apocalyptic number.

It is an amenable number.

30233440120 is an abundant number, since it is smaller than the sum of its proper divisors (43046728520).

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

30233440120 is a wasteful number, since it uses less digits than its factorization.

30233440120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17656 (or 17652 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 22.

Adding to 30233440120 its reverse (2104433203), we get a palindrome (32337873323).

The spelling of 30233440120 in words is "thirty billion, two hundred thirty-three million, four hundred forty thousand, one hundred twenty".

Divisors: 1 2 4 5 8 10 13 20 26 40 52 65 104 130 260 520 4391 8782 13241 17564 21955 26482 35128 43910 52964 57083 66205 87820 105928 114166 132410 172133 175640 228332 264820 285415 344266 456664 529640 570830 688532 860665 1141660 1377064 1721330 2283320 3442660 6885320 58141231 116282462 232564924 290706155 465129848 581412310 755836003 1162824620 1511672006 2325649240 3023344012 3779180015 6046688024 7558360030 15116720060 30233440120