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30231344 = 24111373181
BaseRepresentation
bin111001101010…
…0101100110000
32002212220121102
41303110230300
530214400334
62555543532
7514651013
oct163245460
962786542
1030231344
1116079290
12a15aba8
136356390
14402d37a
1529c267e
hex1cd4b30

30231344 has 80 divisors (see below), whose sum is σ = 70141344. Its totient is φ = 12441600.

The previous prime is 30231343. The next prime is 30231353. The reversal of 30231344 is 44313203.

It is not an unprimeable number, because it can be changed into a prime (30231343) 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, 166934 + ... + 167114.

Almost surely, 230231344 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 30231344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35070672).

30231344 is an abundant number, since it is smaller than the sum of its proper divisors (39910000).

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

30231344 is a wasteful number, since it uses less digits than its factorization.

30231344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 286 (or 280 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 30231344 is about 5498.3037384270. The cubic root of 30231344 is about 311.5199169324.

Adding to 30231344 its reverse (44313203), we get a palindrome (74544547).

The spelling of 30231344 in words is "thirty million, two hundred thirty-one thousand, three hundred forty-four".

Divisors: 1 2 4 8 11 13 16 22 26 44 52 73 88 104 143 146 176 181 208 286 292 362 572 584 724 803 949 1144 1168 1448 1606 1898 1991 2288 2353 2896 3212 3796 3982 4706 6424 7592 7964 9412 10439 12848 13213 15184 15928 18824 20878 25883 26426 31856 37648 41756 51766 52852 83512 103532 105704 145343 167024 171769 207064 211408 290686 343538 414128 581372 687076 1162744 1374152 1889459 2325488 2748304 3778918 7557836 15115672 30231344