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118944640997 = 7313191403957
BaseRepresentation
bin110111011000110100…
…1110010111111100101
3102101000110022211002222
41232301221302333211
53422044312002442
6130350432242125
711410362524000
oct1566151627745
9371013284088
10118944640997
11464981702a6
121b0763a0345
13b2a76667a0
145a85108537
1531624db8d2
hex1bb1a72fe5

118944640997 has 32 divisors (see below), whose sum is σ = 157243296000. Its totient is φ = 89156821824.

The previous prime is 118944640987. The next prime is 118944641003. The reversal of 118944640997 is 799046449811.

It is not a de Polignac number, because 118944640997 - 24 = 118944640981 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (118944640987) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 617258 + ... + 786699.

It is an arithmetic number, because the mean of its divisors is an integer number (4913853000).

Almost surely, 2118944640997 is an apocalyptic number.

It is an amenable number.

118944640997 is a deficient number, since it is larger than the sum of its proper divisors (38298655003).

118944640997 is a wasteful number, since it uses less digits than its factorization.

118944640997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1404010 (or 1403996 counting only the distinct ones).

The product of its (nonzero) digits is 15676416, while the sum is 62.

The spelling of 118944640997 in words is "one hundred eighteen billion, nine hundred forty-four million, six hundred forty thousand, nine hundred ninety-seven".

Divisors: 1 7 13 19 49 91 133 247 343 637 931 1729 4459 6517 12103 84721 1403957 9827699 18251441 26675183 68793893 127760087 186726281 346777379 481557251 894320609 1307083967 2427441653 6260244263 9149587769 16992091571 118944640997