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897205384 = 231926921943
BaseRepresentation
bin110101011110100…
…100010010001000
32022112020202102001
4311132210102020
53314141033014
6225010120344
731143056065
oct6536442210
92275222361
10897205384
114204a3759
122105800b4
13113b5867a
148722dc6c
1553b78974
hex357a4488

897205384 has 32 divisors (see below), whose sum is σ = 1777464000. Its totient is φ = 423392832.

The previous prime is 897205381. The next prime is 897205409. The reversal of 897205384 is 483502798.

It is not an unprimeable number, because it can be changed into a prime (897205381) 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 7 ways as a sum of consecutive naturals, for example, 29917 + ... + 51859.

It is an arithmetic number, because the mean of its divisors is an integer number (55545750).

Almost surely, 2897205384 is an apocalyptic number.

It is an amenable number.

897205384 is a deficient number, since it is larger than the sum of its proper divisors (880258616).

897205384 is a wasteful number, since it uses less digits than its factorization.

897205384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22237 (or 22233 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 46.

The square root of 897205384 is about 29953.3868535763. The cubic root of 897205384 is about 964.4890254820.

The spelling of 897205384 in words is "eight hundred ninety-seven million, two hundred five thousand, three hundred eighty-four".

Divisors: 1 2 4 8 19 38 76 152 269 538 1076 2152 5111 10222 20444 21943 40888 43886 87772 175544 416917 833834 1667668 3335336 5902667 11805334 23610668 47221336 112150673 224301346 448602692 897205384