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18397096704 = 28337380231
BaseRepresentation
bin10001001000100011…
…010110101100000000
31202111010101100022000
4101020203112230000
5300134124043304
612241305344000
71220616512310
oct211043265400
952433340260
1018397096704
117890755058
123695198000
13197259654c
14c67477440
1572a196939
hex4488d6b00

18397096704 has 144 divisors (see below), whose sum is σ = 62175536640. Its totient is φ = 5256299520.

The previous prime is 18397096691. The next prime is 18397096709. The reversal of 18397096704 is 40769079381.

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 (54).

It is not an unprimeable number, because it can be changed into a prime (18397096709) 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, 141732 + ... + 238499.

It is an arithmetic number, because the mean of its divisors is an integer number (431774560).

Almost surely, 218397096704 is an apocalyptic number.

18397096704 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

18397096704 is an abundant number, since it is smaller than the sum of its proper divisors (43778439936).

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

18397096704 is an equidigital number, since it uses as much as digits as its factorization.

18397096704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 380263 (or 380243 counting only the distinct ones).

The product of its (nonzero) digits is 2286144, while the sum is 54.

The spelling of 18397096704 in words is "eighteen billion, three hundred ninety-seven million, ninety-six thousand, seven hundred four".

Divisors: 1 2 3 4 6 7 8 9 12 14 16 18 21 24 27 28 32 36 42 48 54 56 63 64 72 84 96 108 112 126 128 144 168 189 192 216 224 252 256 288 336 378 384 432 448 504 576 672 756 768 864 896 1008 1152 1344 1512 1728 1792 2016 2304 2688 3024 3456 4032 5376 6048 6912 8064 12096 16128 24192 48384 380231 760462 1140693 1520924 2281386 2661617 3041848 3422079 4562772 5323234 6083696 6844158 7984851 9125544 10266237 10646468 12167392 13688316 15969702 18251088 20532474 21292936 23954553 24334784 27376632 31939404 36502176 41064948 42585872 47909106 48669568 54753264 63878808 71863659 73004352 82129896 85171744 95818212 97339136 109506528 127757616 143727318 146008704 164259792 170343488 191636424 219013056 255515232 287454636 292017408 328519584 340686976 383272848 438026112 511030464 574909272 657039168 681373952 766545696 876052224 1022060928 1149818544 1314078336 1533091392 2044121856 2299637088 2628156672 3066182784 4599274176 6132365568 9198548352 18397096704