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121416696370 = 25173361212501
BaseRepresentation
bin111000100010011111…
…1111100001000110010
3102121101201221020120101
41301010333330020302
53442130133240440
6131440021103014
711525550614344
oct1610477741062
9377351836511
10121416696370
1147546618072
121b646257a6a
13b5ac860648
145c3b563294
15325954769a
hex1c44ffc232

121416696370 has 32 divisors (see below), whose sum is σ = 231475878576. Its totient is φ = 45696000000.

The previous prime is 121416696347. The next prime is 121416696371. The reversal of 121416696370 is 73696614121.

It can be written as a sum of positive squares in 8 ways, for example, as 107439072841 + 13977623529 = 327779^2 + 118227^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 121416696370.

It is not an unprimeable number, because it can be changed into a prime (121416696371) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 465120 + ... + 677620.

Almost surely, 2121416696370 is an apocalyptic number.

121416696370 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121416696370 is a deficient number, since it is larger than the sum of its proper divisors (110059182206).

121416696370 is a wasteful number, since it uses less digits than its factorization.

121416696370 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215886.

The product of its (nonzero) digits is 326592, while the sum is 46.

The spelling of 121416696370 in words is "one hundred twenty-one billion, four hundred sixteen million, six hundred ninety-six thousand, three hundred seventy".

Divisors: 1 2 5 10 17 34 85 170 3361 6722 16805 33610 57137 114274 212501 285685 425002 571370 1062505 2125010 3612517 7225034 18062585 36125170 714215861 1428431722 3571079305 7142158610 12141669637 24283339274 60708348185 121416696370