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79104672 = 253217107151
BaseRepresentation
bin1001011011100…
…00101010100000
312111211221012200
410231300222200
5130222322142
611503253200
71650243603
oct455605240
9174757180
1079104672
114071a569
12225aa200
13135089ca
14a71233a
156e2864c
hex4b70aa0

79104672 has 144 divisors (see below), whose sum is σ = 242004672. Its totient is φ = 24422400.

The previous prime is 79104671. The next prime is 79104677. The reversal of 79104672 is 27640197.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (144).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (79104671) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 523797 + ... + 523947.

It is an arithmetic number, because the mean of its divisors is an integer number (1680588).

Almost surely, 279104672 is an apocalyptic number.

79104672 is a gapful number since it is divisible by the number (72) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 79104672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (121002336).

79104672 is an abundant number, since it is smaller than the sum of its proper divisors (162900000).

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

79104672 is a wasteful number, since it uses less digits than its factorization.

79104672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 291 (or 280 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 36.

The square root of 79104672 is about 8894.0807282147. The cubic root of 79104672 is about 429.2734657552.

The spelling of 79104672 in words is "seventy-nine million, one hundred four thousand, six hundred seventy-two".

Divisors: 1 2 3 4 6 8 9 12 16 17 18 24 32 34 36 48 51 68 72 96 102 107 136 144 151 153 204 214 272 288 302 306 321 408 428 453 544 604 612 642 816 856 906 963 1208 1224 1284 1359 1632 1712 1812 1819 1926 2416 2448 2567 2568 2718 3424 3624 3638 3852 4832 4896 5134 5136 5436 5457 7248 7276 7701 7704 10268 10272 10872 10914 14496 14552 15402 15408 16157 16371 20536 21744 21828 23103 29104 30804 30816 32314 32742 41072 43488 43656 46206 48471 58208 61608 64628 65484 82144 87312 92412 96942 123216 129256 130968 145413 174624 184824 193884 246432 258512 261936 274669 290826 369648 387768 517024 523872 549338 581652 739296 775536 824007 1098676 1163304 1551072 1648014 2197352 2326608 2472021 3296028 4394704 4653216 4944042 6592056 8789408 9888084 13184112 19776168 26368224 39552336 79104672