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1428752 = 24136869
BaseRepresentation
bin101011100110100010000
32200120212202
411130310100
5331210002
650342332
715100313
oct5346420
92616782
101428752
11896496
1258a9a8
133b0420
1429297a
151d3502
hex15cd10

1428752 has 20 divisors (see below), whose sum is σ = 2981580. Its totient is φ = 659328.

The previous prime is 1428751. The next prime is 1428767. The reversal of 1428752 is 2578241.

It can be written as a sum of positive squares in 2 ways, for example, as 92416 + 1336336 = 304^2 + 1156^2 .

It is not an unprimeable number, because it can be changed into a prime (1428751) 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, 3227 + ... + 3642.

It is an arithmetic number, because the mean of its divisors is an integer number (149079).

21428752 is an apocalyptic number.

It is an amenable number.

1428752 is an abundant number, since it is smaller than the sum of its proper divisors (1552828).

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

1428752 is a wasteful number, since it uses less digits than its factorization.

1428752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6890 (or 6884 counting only the distinct ones).

The product of its digits is 4480, while the sum is 29.

The square root of 1428752 is about 1195.3041453956. The cubic root of 1428752 is about 112.6295331022.

The spelling of 1428752 in words is "one million, four hundred twenty-eight thousand, seven hundred fifty-two".

Divisors: 1 2 4 8 13 16 26 52 104 208 6869 13738 27476 54952 89297 109904 178594 357188 714376 1428752