Search a number
-
+
30145533210 = 2335139838737
BaseRepresentation
bin11100000100110100…
…000101010100011010
32212210220010202102000
4130010310011110122
5443214224030320
621503151221430
72115014542632
oct340464052432
985726122360
1030145533210
111186a405311
125a13817876
132ac558bb20
14165d8cd6c2
15bb67c4c90
hex704d0551a

30145533210 has 128 divisors (see below), whose sum is σ = 86669775360. Its totient is φ = 7412041728.

The previous prime is 30145533193. The next prime is 30145533227. The reversal of 30145533210 is 1233554103.

It is an interprime number because it is at equal distance from previous prime (30145533193) and next prime (30145533227).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3445962 + ... + 3454698.

It is an arithmetic number, because the mean of its divisors is an integer number (677107620).

Almost surely, 230145533210 is an apocalyptic number.

30145533210 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 30145533210, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43334887680).

30145533210 is an abundant number, since it is smaller than the sum of its proper divisors (56524242150).

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

30145533210 is a wasteful number, since it uses less digits than its factorization.

30145533210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9749 (or 9743 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 27.

The spelling of 30145533210 in words is "thirty billion, one hundred forty-five million, five hundred thirty-three thousand, two hundred ten".

Divisors: 1 2 3 5 6 9 10 13 15 18 26 27 30 39 45 54 65 78 90 117 130 135 195 234 270 351 390 585 702 983 1170 1755 1966 2949 3510 4915 5898 8737 8847 9830 12779 14745 17474 17694 25558 26211 26541 29490 38337 43685 44235 52422 53082 63895 76674 78633 87370 88470 113581 115011 127790 131055 132705 157266 191685 227162 230022 235899 262110 265410 340743 345033 383370 393165 471798 567905 575055 681486 690066 786330 1022229 1135810 1150110 1179495 1703715 1725165 2044458 2358990 3066687 3407430 3450330 5111145 6133374 8588471 10222290 15333435 17176942 25765413 30666870 42942355 51530826 77296239 85884710 111650123 128827065 154592478 223300246 231888717 257654130 334950369 386481195 463777434 558250615 669900738 772962390 1004851107 1116501230 1159443585 1674751845 2009702214 2318887170 3014553321 3349503690 5024255535 6029106642 10048511070 15072766605 30145533210