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675557161 = 2394096911
BaseRepresentation
bin101000010001000…
…010111100101001
31202002011212012121
4220101002330221
52340420312121
6151011311241
722512066256
oct5021027451
91662155177
10675557161
11317375104
1216a2ab521
13a9c61986
1465a1442d
153e495141
hex28442f29

675557161 has 8 divisors (see below), whose sum is σ = 680140800. Its totient is φ = 670988640.

The previous prime is 675557159. The next prime is 675557167. The reversal of 675557161 is 161755576.

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 675557161 - 21 = 675557159 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (675557167) 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, 94296 + ... + 101206.

It is an arithmetic number, because the mean of its divisors is an integer number (85017600).

Almost surely, 2675557161 is an apocalyptic number.

It is an amenable number.

675557161 is a deficient number, since it is larger than the sum of its proper divisors (4583639).

675557161 is a wasteful number, since it uses less digits than its factorization.

675557161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7559.

The product of its digits is 220500, while the sum is 43.

The square root of 675557161 is about 25991.4824702247. The cubic root of 675557161 is about 877.4466104426.

The spelling of 675557161 in words is "six hundred seventy-five million, five hundred fifty-seven thousand, one hundred sixty-one".

Divisors: 1 239 409 6911 97751 1651729 2826599 675557161