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201370 = 25131549
BaseRepresentation
bin110001001010011010
3101020020011
4301022122
522420440
64152134
71466041
oct611232
9336204
10201370
11128324
129864a
1370870
1453558
153e9ea
hex3129a

201370 has 16 divisors (see below), whose sum is σ = 390600. Its totient is φ = 74304.

The previous prime is 201359. The next prime is 201389. The reversal of 201370 is 73102.

It can be written as a sum of positive squares in 4 ways, for example, as 109561 + 91809 = 331^2 + 303^2 .

It is a super-5 number, since 5×2013705 (a number of 28 digits) contains 55555 as substring.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 201370.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 645 + ... + 904.

2201370 is an apocalyptic number.

201370 is a deficient number, since it is larger than the sum of its proper divisors (189230).

201370 is a wasteful number, since it uses less digits than its factorization.

201370 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1569.

The product of its (nonzero) digits is 42, while the sum is 13.

The square root of 201370 is about 448.7426879627. The cubic root of 201370 is about 58.6135811688.

Adding to 201370 its reverse (73102), we get a palindrome (274472).

The spelling of 201370 in words is "two hundred one thousand, three hundred seventy", and thus it is an iban number.

Divisors: 1 2 5 10 13 26 65 130 1549 3098 7745 15490 20137 40274 100685 201370