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130223052 = 2234419803
BaseRepresentation
bin1111100001100…
…00101111001100
3100002001000110000
413300300233030
5231314114202
620531044300
73140610021
oct760605714
9302030400
10130223052
1167564563
1237740690
1320c9617b
141341b548
15b67491c
hex7c30bcc

130223052 has 60 divisors (see below), whose sum is σ = 348767496. Its totient is φ = 42344640.

The previous prime is 130223029. The next prime is 130223059. The reversal of 130223052 is 250322031.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130223059) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 8383 + ... + 18185.

Almost surely, 2130223052 is an apocalyptic number.

130223052 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 130223052, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (174383748).

130223052 is an abundant number, since it is smaller than the sum of its proper divisors (218544444).

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

130223052 is a wasteful number, since it uses less digits than its factorization.

130223052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9860 (or 9849 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

The square root of 130223052 is about 11411.5315361261. The cubic root of 130223052 is about 506.8692635844.

Adding to 130223052 its reverse (250322031), we get a palindrome (380545083).

The spelling of 130223052 in words is "one hundred thirty million, two hundred twenty-three thousand, fifty-two".

Divisors: 1 2 3 4 6 9 12 18 27 36 41 54 81 82 108 123 162 164 246 324 369 492 738 1107 1476 2214 3321 4428 6642 9803 13284 19606 29409 39212 58818 88227 117636 176454 264681 352908 401923 529362 794043 803846 1058724 1205769 1588086 1607692 2411538 3176172 3617307 4823076 7234614 10851921 14469228 21703842 32555763 43407684 65111526 130223052