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897861348 = 22342771177
BaseRepresentation
bin110101100001000…
…100011011100100
32022120111002020000
4311201010123210
53314323030343
6225032141300
731151460366
oct6541043344
92276432200
10897861348
1142090157a
12210837830
13114028107
1487360d36
1553c57ed3
hex358446e4

897861348 has 30 divisors (see below), whose sum is σ = 2347187766. Its totient is φ = 299287008.

The previous prime is 897861347. The next prime is 897861353. The reversal of 897861348 is 843168798.

It can be written as a sum of positive squares in only one way, i.e., 728028324 + 169833024 = 26982^2 + 13032^2 .

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a junction number, because it is equal to n+sod(n) for n = 897861294 and 897861303.

It is not an unprimeable number, because it can be changed into a prime (897861343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 1385265 + ... + 1385912.

Almost surely, 2897861348 is an apocalyptic number.

It is an amenable number.

897861348 is an abundant number, since it is smaller than the sum of its proper divisors (1449326418).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

897861348 is a wasteful number, since it uses less digits than its factorization.

897861348 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2771193 (or 2771182 counting only the distinct ones).

The product of its digits is 2322432, while the sum is 54.

The square root of 897861348 is about 29964.3345996536. The cubic root of 897861348 is about 964.7240203402.

The spelling of 897861348 in words is "eight hundred ninety-seven million, eight hundred sixty-one thousand, three hundred forty-eight".

Divisors: 1 2 3 4 6 9 12 18 27 36 54 81 108 162 324 2771177 5542354 8313531 11084708 16627062 24940593 33254124 49881186 74821779 99762372 149643558 224465337 299287116 448930674 897861348