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11444225 = 5213231531
BaseRepresentation
bin101011101010…
…000000000001
3210112102112012
4223222000001
510412203400
61045142305
7166163042
oct53520001
923472465
1011444225
116507241
1239ba995
1324a9040
14173c8c9
151010d35
hexaea001

11444225 has 24 divisors (see below), whose sum is σ = 15957312. Its totient is φ = 8078400.

The previous prime is 11444197. The next prime is 11444263. The reversal of 11444225 is 52244411.

It is a de Polignac number, because none of the positive numbers 2k-11444225 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11444225.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6710 + ... + 8240.

It is an arithmetic number, because the mean of its divisors is an integer number (664888).

It is a Proth number, since it is equal to 1397 ⋅ 213 + 1 and 1397 < 213.

Almost surely, 211444225 is an apocalyptic number.

It is an amenable number.

11444225 is a deficient number, since it is larger than the sum of its proper divisors (4513087).

11444225 is a wasteful number, since it uses less digits than its factorization.

11444225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1577 (or 1572 counting only the distinct ones).

The product of its digits is 1280, while the sum is 23.

The square root of 11444225 is about 3382.9314211199. The cubic root of 11444225 is about 225.3523696809.

Adding to 11444225 its reverse (52244411), we get a palindrome (63688636).

The spelling of 11444225 in words is "eleven million, four hundred forty-four thousand, two hundred twenty-five".

Divisors: 1 5 13 23 25 65 115 299 325 575 1495 1531 7475 7655 19903 35213 38275 99515 176065 457769 497575 880325 2288845 11444225