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1398201 = 37139479
BaseRepresentation
bin101010101010110111001
32122000222020
411111112321
5324220301
645545053
714612250
oct5252671
92560866
101398201
11875542
12575189
1339c54c
14285797
151c9436
hex1555b9

1398201 has 16 divisors (see below), whose sum is σ = 2150400. Its totient is φ = 791568.

The previous prime is 1398197. The next prime is 1398209. The reversal of 1398201 is 1028931.

It is not a de Polignac number, because 1398201 - 22 = 1398197 is a prime.

It is a Curzon number.

It is a nialpdrome in base 11.

It is not an unprimeable number, because it can be changed into a prime (1398209) 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, 2680 + ... + 3158.

It is an arithmetic number, because the mean of its divisors is an integer number (134400).

21398201 is an apocalyptic number.

It is an amenable number.

1398201 is a deficient number, since it is larger than the sum of its proper divisors (752199).

1398201 is a wasteful number, since it uses less digits than its factorization.

1398201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 628.

The product of its (nonzero) digits is 432, while the sum is 24.

The square root of 1398201 is about 1182.4554959913. The cubic root of 1398201 is about 111.8209564926.

The spelling of 1398201 in words is "one million, three hundred ninety-eight thousand, two hundred one".

Divisors: 1 3 7 21 139 417 479 973 1437 2919 3353 10059 66581 199743 466067 1398201