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121282836864 = 273726445729
BaseRepresentation
bin111000011110100000…
…1010011100110000000
3102121001102001110211220
41300331001103212000
53441341401234424
6131414440035040
711522334050400
oct1607501234600
9377042043756
10121282836864
1147487aaa482
121b609462a80
13b58abc3237
145c2787a800
15324c905579
hex1c3d053980

121282836864 has 96 divisors (see below), whose sum is σ = 374754742200. Its totient is φ = 34652233728.

The previous prime is 121282836859. The next prime is 121282836869. The reversal of 121282836864 is 468638282121.

It is an interprime number because it is at equal distance from previous prime (121282836859) and next prime (121282836869).

It is a tau number, because it is divible by the number of its divisors (96).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121282836869) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3204049 + ... + 3241680.

Almost surely, 2121282836864 is an apocalyptic number.

121282836864 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

121282836864 is an abundant number, since it is smaller than the sum of its proper divisors (253471905336).

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

121282836864 is an equidigital number, since it uses as much as digits as its factorization.

121282836864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6445760 (or 6445741 counting only the distinct ones).

The product of its digits is 1769472, while the sum is 51.

The spelling of 121282836864 in words is "one hundred twenty-one billion, two hundred eighty-two million, eight hundred thirty-six thousand, eight hundred sixty-four".

Divisors: 1 2 3 4 6 7 8 12 14 16 21 24 28 32 42 48 49 56 64 84 96 98 112 128 147 168 192 196 224 294 336 384 392 448 588 672 784 896 1176 1344 1568 2352 2688 3136 4704 6272 9408 18816 6445729 12891458 19337187 25782916 38674374 45120103 51565832 77348748 90240206 103131664 135360309 154697496 180480412 206263328 270720618 309394992 315840721 360960824 412526656 541441236 618789984 631681442 721921648 825053312 947522163 1082882472 1237579968 1263362884 1443843296 1895044326 2165764944 2475159936 2526725768 2887686592 3790088652 4331529888 5053451536 5775373184 7580177304 8663059776 10106903072 15160354608 17326119552 20213806144 30320709216 40427612288 60641418432 121282836864