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18735070190 = 254873847037
BaseRepresentation
bin10001011100101100…
…100111101111101110
31210100200100011202112
4101130230213233232
5301332134221230
612335021324022
71232162316614
oct213454475756
953320304675
1018735070190
117a44505591
12376a406612
1319c75cb665
14c9a2d36b4
15749ba6d95
hex45cb27bee

18735070190 has 16 divisors (see below), whose sum is σ = 33792381792. Its totient is φ = 7478637984.

The previous prime is 18735070127. The next prime is 18735070199. The reversal of 18735070190 is 9107053781.

It is a super-2 number, since 2×187350701902 (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18735070199) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1918649 + ... + 1928388.

It is an arithmetic number, because the mean of its divisors is an integer number (2112023862).

Almost surely, 218735070190 is an apocalyptic number.

18735070190 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18735070190 is a deficient number, since it is larger than the sum of its proper divisors (15057311602).

18735070190 is a wasteful number, since it uses less digits than its factorization.

18735070190 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3847531.

The product of its (nonzero) digits is 52920, while the sum is 41.

The spelling of 18735070190 in words is "eighteen billion, seven hundred thirty-five million, seventy thousand, one hundred ninety".

Divisors: 1 2 5 10 487 974 2435 4870 3847037 7694074 19235185 38470370 1873507019 3747014038 9367535095 18735070190