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1372288 = 2771151
BaseRepresentation
bin101001111000010000000
32120201102111
411033002000
5322403123
645225104
714443561
oct5170200
92521374
101372288
11858025
12562194
13390808
1427a168
151c190d
hex14f080

1372288 has 32 divisors (see below), whose sum is σ = 2790720. Its totient is φ = 672000.

The previous prime is 1372271. The next prime is 1372303. The reversal of 1372288 is 8822731.

It is a tau number, because it is divible by the number of its divisors (32).

Its product of digits (5376) is a multiple of the sum of its prime divisors (224).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9013 + ... + 9163.

It is an arithmetic number, because the mean of its divisors is an integer number (87210).

21372288 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1372288, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1395360).

1372288 is an abundant number, since it is smaller than the sum of its proper divisors (1418432).

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

1372288 is an equidigital number, since it uses as much as digits as its factorization.

1372288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 236 (or 224 counting only the distinct ones).

The product of its digits is 5376, while the sum is 31.

The square root of 1372288 is about 1171.4469684967. The cubic root of 1372288 is about 111.1258481194.

The spelling of 1372288 in words is "one million, three hundred seventy-two thousand, two hundred eighty-eight".

Divisors: 1 2 4 8 16 32 64 71 128 142 151 284 302 568 604 1136 1208 2272 2416 4544 4832 9088 9664 10721 19328 21442 42884 85768 171536 343072 686144 1372288