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189461675053 = 723866564797
BaseRepresentation
bin1011000001110011001…
…0111011110000101101
3200010000220120022101001
42300130302323300231
511101004142100203
6223012033120301
716455015444400
oct2603462736055
9603026508331
10189461675053
11733941a3742
12308763b9091
1314b34c4b641
14925466bd37
154ddd1cc91d
hex2c1ccbbc2d

189461675053 has 6 divisors (see below), whose sum is σ = 220394193486. Its totient is φ = 162395721432.

The previous prime is 189461674999. The next prime is 189461675057. The reversal of 189461675053 is 350576164981.

It can be written as a sum of positive squares in only one way, i.e., 189049300804 + 412374249 = 434798^2 + 20307^2 .

It is a de Polignac number, because none of the positive numbers 2k-189461675053 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 189461674985 and 189461675003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189461675057) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1933282350 + ... + 1933282447.

It is an arithmetic number, because the mean of its divisors is an integer number (36732365581).

Almost surely, 2189461675053 is an apocalyptic number.

It is an amenable number.

189461675053 is a deficient number, since it is larger than the sum of its proper divisors (30932518433).

189461675053 is an equidigital number, since it uses as much as digits as its factorization.

189461675053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3866564811 (or 3866564804 counting only the distinct ones).

The product of its (nonzero) digits is 5443200, while the sum is 55.

The spelling of 189461675053 in words is "one hundred eighty-nine billion, four hundred sixty-one million, six hundred seventy-five thousand, fifty-three".

Divisors: 1 7 49 3866564797 27065953579 189461675053