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330131052 = 22352314767
BaseRepresentation
bin10011101011010…
…110011001101100
3212000012101200000
4103223112121230
51134003143202
652431504300
711116032126
oct2353263154
9760171600
10330131052
1115a394389
1292688090
135351a624
1431bb8216
151deb191c
hex13ad666c

330131052 has 72 divisors (see below), whose sum is σ = 903092736. Its totient is φ = 105252048.

The previous prime is 330131051. The next prime is 330131069. The reversal of 330131052 is 250131033.

330131052 is a `hidden beast` number, since 3 + 301 + 310 + 52 = 666.

It is a super-2 number, since 2×3301310522 = 217973022989253408, which contains 22 as substring.

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

It is not an unprimeable number, because it can be changed into a prime (330131051) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14973 + ... + 29739.

Almost surely, 2330131052 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 330131052, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (451546368).

330131052 is an abundant number, since it is smaller than the sum of its proper divisors (572961684).

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

330131052 is a wasteful number, since it uses less digits than its factorization.

330131052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14809 (or 14795 counting only the distinct ones).

The product of its (nonzero) digits is 270, while the sum is 18.

The square root of 330131052 is about 18169.5088541215. The cubic root of 330131052 is about 691.1337881454.

Adding to 330131052 its reverse (250131033), we get a palindrome (580262085).

The spelling of 330131052 in words is "three hundred thirty million, one hundred thirty-one thousand, fifty-two".

Divisors: 1 2 3 4 6 9 12 18 23 27 36 46 54 69 81 92 108 138 162 207 243 276 324 414 486 621 828 972 1242 1863 2484 3726 5589 7452 11178 14767 22356 29534 44301 59068 88602 132903 177204 265806 339641 398709 531612 679282 797418 1018923 1196127 1358564 1594836 2037846 2392254 3056769 3588381 4075692 4784508 6113538 7176762 9170307 12227076 14353524 18340614 27510921 36681228 55021842 82532763 110043684 165065526 330131052