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102224401 = 145170451
BaseRepresentation
bin1100001011111…
…01001000010001
321010100112111221
412011331020101
5202132140101
614051005041
72350615216
oct605751021
9233315457
10102224401
1152780784
122a299781
1318242116
14d80db0d
158e93aa1
hex617d211

102224401 has 4 divisors (see below), whose sum is σ = 102296304. Its totient is φ = 102152500.

The previous prime is 102224399. The next prime is 102224413. The reversal of 102224401 is 104422201.

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.

It is a cyclic number.

It is not a de Polignac number, because 102224401 - 21 = 102224399 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102224461) 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, 33775 + ... + 36676.

It is an arithmetic number, because the mean of its divisors is an integer number (25574076).

Almost surely, 2102224401 is an apocalyptic number.

It is an amenable number.

102224401 is a deficient number, since it is larger than the sum of its proper divisors (71903).

102224401 is an equidigital number, since it uses as much as digits as its factorization.

102224401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71902.

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 102224401 is about 10110.6083397588. The cubic root of 102224401 is about 467.5752608395.

Adding to 102224401 its reverse (104422201), we get a palindrome (206646602).

The spelling of 102224401 in words is "one hundred two million, two hundred twenty-four thousand, four hundred one".

Divisors: 1 1451 70451 102224401