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30344544 = 253423509
BaseRepresentation
bin111001111000…
…0010101100000
32010002122220000
41303300111200
530232011134
63002220000
7515632026
oct163602540
963078800
1030344544
111614633a
12a1b4600
136395a69
14405c716
1529e5e99
hex1cf0560

30344544 has 120 divisors (see below), whose sum is σ = 93305520. Its totient is φ = 9656064.

The previous prime is 30344533. The next prime is 30344579. The reversal of 30344544 is 44544303.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 59362 + ... + 59870.

It is an arithmetic number, because the mean of its divisors is an integer number (777546).

Almost surely, 230344544 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 30344544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46652760).

30344544 is an abundant number, since it is smaller than the sum of its proper divisors (62960976).

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

30344544 is a wasteful number, since it uses less digits than its factorization.

30344544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 554 (or 537 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 27.

The square root of 30344544 is about 5508.5882038867. The cubic root of 30344544 is about 311.9082570495.

Adding to 30344544 its reverse (44544303), we get a palindrome (74888847).

The spelling of 30344544 in words is "thirty million, three hundred forty-four thousand, five hundred forty-four".

Divisors: 1 2 3 4 6 8 9 12 16 18 23 24 27 32 36 46 48 54 69 72 81 92 96 108 138 144 162 184 207 216 276 288 324 368 414 432 509 552 621 648 736 828 864 1018 1104 1242 1296 1527 1656 1863 2036 2208 2484 2592 3054 3312 3726 4072 4581 4968 6108 6624 7452 8144 9162 9936 11707 12216 13743 14904 16288 18324 19872 23414 24432 27486 29808 35121 36648 41229 46828 48864 54972 59616 70242 73296 82458 93656 105363 109944 140484 146592 164916 187312 210726 219888 280968 316089 329832 374624 421452 439776 561936 632178 659664 842904 948267 1123872 1264356 1319328 1685808 1896534 2528712 3371616 3793068 5057424 7586136 10114848 15172272 30344544