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897884349 = 319131120247
BaseRepresentation
bin110101100001001…
…010000010111101
32022120112020202220
4311201022002331
53314324244344
6225032435553
731151614425
oct6541120275
92276466686
10897884349
1142091788a
12210848bb9
1311403571b
1487369485
1553c5ec19
hex3584a0bd

897884349 has 16 divisors (see below), whose sum is σ = 1269818880. Its totient is φ = 562751280.

The previous prime is 897884329. The next prime is 897884363. The reversal of 897884349 is 943488798.

It is not a de Polignac number, because 897884349 - 212 = 897880253 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 897884292 and 897884301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (897884329) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52657 + ... + 67590.

It is an arithmetic number, because the mean of its divisors is an integer number (79363680).

Almost surely, 2897884349 is an apocalyptic number.

It is an amenable number.

897884349 is a deficient number, since it is larger than the sum of its proper divisors (371934531).

897884349 is a wasteful number, since it uses less digits than its factorization.

897884349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120400.

The product of its digits is 13934592, while the sum is 60.

The square root of 897884349 is about 29964.7184034825. The cubic root of 897884349 is about 964.7322582223.

The spelling of 897884349 in words is "eight hundred ninety-seven million, eight hundred eighty-four thousand, three hundred forty-nine".

Divisors: 1 3 19 57 131 393 2489 7467 120247 360741 2284693 6854079 15752357 47257071 299294783 897884349