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102213401 = 176012553
BaseRepresentation
bin1100001011110…
…10011100011001
321010022222102112
412011322130121
5202131312101
614050442105
72350541153
oct605723431
9233288375
10102213401
1152773494
122a293335
131823a104
14d809ad3
158e906bb
hex617a719

102213401 has 4 divisors (see below), whose sum is σ = 108225972. Its totient is φ = 96200832.

The previous prime is 102213383. The next prime is 102213413. The reversal of 102213401 is 104312201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 104312201 = 714901743.

It can be written as a sum of positive squares in 2 ways, for example, as 83247376 + 18966025 = 9124^2 + 4355^2 .

It is a cyclic number.

It is not a de Polignac number, because 102213401 - 210 = 102212377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102213101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3006260 + ... + 3006293.

It is an arithmetic number, because the mean of its divisors is an integer number (27056493).

Almost surely, 2102213401 is an apocalyptic number.

It is an amenable number.

102213401 is a deficient number, since it is larger than the sum of its proper divisors (6012571).

102213401 is an equidigital number, since it uses as much as digits as its factorization.

102213401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6012570.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 102213401 is about 10110.0643420307. The cubic root of 102213401 is about 467.5584888740.

Adding to 102213401 its reverse (104312201), we get a palindrome (206525602).

The spelling of 102213401 in words is "one hundred two million, two hundred thirteen thousand, four hundred one".

Divisors: 1 17 6012553 102213401