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101401 = 313271
BaseRepresentation
bin11000110000011001
312011002121
4120300121
511221101
62101241
7601426
oct306031
9164077
10101401
116a203
124a821
1337201
1428d4d
15200a1
hex18c19

101401 has 4 divisors (see below), whose sum is σ = 104704. Its totient is φ = 98100.

The previous prime is 101399. The next prime is 101411. The reversal of 101401 is 104101.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 104101 = 195479.

It is a cyclic number.

It is not a de Polignac number, because 101401 - 21 = 101399 is a prime.

It is a Duffinian number.

101401 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (101411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1605 + ... + 1666.

It is an arithmetic number, because the mean of its divisors is an integer number (26176).

2101401 is an apocalyptic number.

It is an amenable number.

101401 is a deficient number, since it is larger than the sum of its proper divisors (3303).

101401 is an equidigital number, since it uses as much as digits as its factorization.

101401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3302.

The product of its (nonzero) digits is 4, while the sum is 7.

The square root of 101401 is about 318.4352367437. The cubic root of 101401 is about 46.6316460613.

Adding to 101401 its reverse (104101), we get a palindrome (205502).

The spelling of 101401 in words is "one hundred one thousand, four hundred one", and thus it is an iban number.

Divisors: 1 31 3271 101401