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12101401 = 133892393
BaseRepresentation
bin101110001010…
…011100011001
3211202211000001
4232022130121
511044221101
61111213001
7204601024
oct56123431
924684001
1012101401
116915a64
124077161
1326791c0
1418701bb
1510e0901
hexb8a719

12101401 has 8 divisors (see below), whose sum is σ = 13071240. Its totient is φ = 11137152.

The previous prime is 12101393. The next prime is 12101407. The reversal of 12101401 is 10410121.

12101401 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 811801 + 11289600 = 901^2 + 3360^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12101401 - 23 = 12101393 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12101407) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3861 + ... + 6253.

It is an arithmetic number, because the mean of its divisors is an integer number (1633905).

Almost surely, 212101401 is an apocalyptic number.

It is an amenable number.

12101401 is a deficient number, since it is larger than the sum of its proper divisors (969839).

12101401 is a wasteful number, since it uses less digits than its factorization.

12101401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2795.

The product of its (nonzero) digits is 8, while the sum is 10.

The square root of 12101401 is about 3478.7067999474. The cubic root of 12101401 is about 229.5859026600.

Adding to 12101401 its reverse (10410121), we get a palindrome (22511522).

The spelling of 12101401 in words is "twelve million, one hundred one thousand, four hundred one".

Divisors: 1 13 389 2393 5057 31109 930877 12101401