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188083664093 = 1318617774301
BaseRepresentation
bin1010111100101010101…
…0001111010011011101
3122222110212121002201002
42233022222033103131
511040143404222333
6222223205400045
716405613523623
oct2571252172335
9588425532632
10188083664093
1172847363706
1230550a09025
13149755cb740
149163641513
154d5c22d0e8
hex2bcaa8f4dd

188083664093 has 8 divisors (see below), whose sum is σ = 202660504536. Its totient is φ = 173522376000.

The previous prime is 188083664059. The next prime is 188083664113. The reversal of 188083664093 is 390466380881.

It can be written as a sum of positive squares in 4 ways, for example, as 7681295449 + 180402368644 = 87643^2 + 424738^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 188083664093 - 210 = 188083663069 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (188083064093) 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, 3862958 + ... + 3911343.

It is an arithmetic number, because the mean of its divisors is an integer number (25332563067).

Almost surely, 2188083664093 is an apocalyptic number.

188083664093 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

188083664093 is a deficient number, since it is larger than the sum of its proper divisors (14576840443).

188083664093 is a wasteful number, since it uses less digits than its factorization.

188083664093 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7776175.

The product of its (nonzero) digits is 5971968, while the sum is 56.

The spelling of 188083664093 in words is "one hundred eighty-eight billion, eighty-three million, six hundred sixty-four thousand, ninety-three".

Divisors: 1 13 1861 24193 7774301 101065913 14467974161 188083664093