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838160401 = 1321721312
BaseRepresentation
bin110001111101010…
…101000000010001
32011102010221220211
4301331111000101
53204032113101
6215100404121
726525150221
oct6175250021
92142127824
10838160401
113a0135351
121b4846641
13104854300
147d460081
154d8b3c51
hex31f55011

838160401 has 27 divisors (see below), whose sum is σ = 971538033. Its totient is φ = 722616960.

The previous prime is 838160399. The next prime is 838160459. The reversal of 838160401 is 104061838.

The square root of 838160401 is 28951.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 7568001 + 830592400 = 2751^2 + 28820^2 .

It is not a de Polignac number, because 838160401 - 21 = 838160399 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (838160461) 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 26 ways as a sum of consecutive naturals, for example, 6398106 + ... + 6398236.

Almost surely, 2838160401 is an apocalyptic number.

838160401 is the 28951-st square number.

838160401 is the 14476-th centered octagonal number.

It is an amenable number.

838160401 is a deficient number, since it is larger than the sum of its proper divisors (133377632).

838160401 is a wasteful number, since it uses less digits than its factorization.

838160401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 322 (or 161 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 31.

The cubic root of 838160401 is about 942.8495096927.

The spelling of 838160401 in words is "eight hundred thirty-eight million, one hundred sixty thousand, four hundred one".

Divisors: 1 13 17 131 169 221 289 1703 2227 2873 3757 17161 22139 28951 37859 48841 223093 291737 376363 492167 2900209 3792581 4959529 6398171 49303553 64473877 838160401