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186868238473 = 7227117601157
BaseRepresentation
bin1010111000001000110…
…1110000100010001001
3122212100011120002012101
42232002031300202021
511030201232112343
6221502430513401
716333524550660
oct2560215604211
9585304502171
10186868238473
1172283281424
1230271965861
1314810865c97
14908a057dd7
154cda696e4d
hex2b82370889

186868238473 has 8 divisors (see below), whose sum is σ = 214504512192. Its totient is φ = 159467167536.

The previous prime is 186868238471. The next prime is 186868238489. The reversal of 186868238473 is 374832868681.

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 186868238473 - 21 = 186868238471 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (186868238471) 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, 58798990 + ... + 58802167.

It is an arithmetic number, because the mean of its divisors is an integer number (26813064024).

Almost surely, 2186868238473 is an apocalyptic number.

It is an amenable number.

186868238473 is a deficient number, since it is larger than the sum of its proper divisors (27636273719).

186868238473 is a wasteful number, since it uses less digits than its factorization.

186868238473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117601391.

The product of its digits is 74317824, while the sum is 64.

The spelling of 186868238473 in words is "one hundred eighty-six billion, eight hundred sixty-eight million, two hundred thirty-eight thousand, four hundred seventy-three".

Divisors: 1 7 227 1589 117601157 823208099 26695462639 186868238473