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1372228 = 2211132399
BaseRepresentation
bin101001111000001000100
32120201100021
411033001010
5322402403
645224524
714443444
oct5170104
92521307
101372228
11857a80
12562144
13390790
1427a124
151c18bd
hex14f044

1372228 has 24 divisors (see below), whose sum is σ = 2822400. Its totient is φ = 575520.

The previous prime is 1372211. The next prime is 1372243. The reversal of 1372228 is 8222731.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 628 + ... + 1771.

It is an arithmetic number, because the mean of its divisors is an integer number (117600).

21372228 is an apocalyptic number.

It is an amenable number.

1372228 is an abundant number, since it is smaller than the sum of its proper divisors (1450172).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1372228 is a wasteful number, since it uses less digits than its factorization.

1372228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2427 (or 2425 counting only the distinct ones).

The product of its digits is 1344, while the sum is 25.

The square root of 1372228 is about 1171.4213588628. The cubic root of 1372228 is about 111.1242285254.

Adding to 1372228 its reverse (8222731), we get a palindrome (9594959).

It can be divided in two parts, 1372 and 228, that added together give a square (1600 = 402).

The spelling of 1372228 in words is "one million, three hundred seventy-two thousand, two hundred twenty-eight".

Divisors: 1 2 4 11 13 22 26 44 52 143 286 572 2399 4798 9596 26389 31187 52778 62374 105556 124748 343057 686114 1372228