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30443244 = 223131910271
BaseRepresentation
bin111010000100…
…0011011101100
32010021200021120
41310020123230
530243140434
63004300540
7516522546
oct164103354
963250246
1030443244
1116203507
12a241750
1363cb970
144086696
152a15349
hex1d086ec

30443244 has 48 divisors (see below), whose sum is σ = 80532480. Its totient is φ = 8873280.

The previous prime is 30443239. The next prime is 30443249. The reversal of 30443244 is 44234403.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (30443239) and next prime (30443249).

It is a super-2 number, since 2×304432442 = 1853582210487072, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (30443249) 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, 2172 + ... + 8099.

It is an arithmetic number, because the mean of its divisors is an integer number (1677760).

Almost surely, 230443244 is an apocalyptic number.

It is an amenable number.

30443244 is an abundant number, since it is smaller than the sum of its proper divisors (50089236).

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

30443244 is a wasteful number, since it uses less digits than its factorization.

30443244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10310 (or 10308 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 24.

The square root of 30443244 is about 5517.5396690917. The cubic root of 30443244 is about 312.2460665662.

Adding to 30443244 its reverse (44234403), we get a palindrome (74677647).

The spelling of 30443244 in words is "thirty million, four hundred forty-three thousand, two hundred forty-four".

Divisors: 1 2 3 4 6 12 13 19 26 38 39 52 57 76 78 114 156 228 247 494 741 988 1482 2964 10271 20542 30813 41084 61626 123252 133523 195149 267046 390298 400569 534092 585447 780596 801138 1170894 1602276 2341788 2536937 5073874 7610811 10147748 15221622 30443244