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128882452 = 2232220613
BaseRepresentation
bin1111010111010…
…01011100010100
322222111220111011
413223221130110
5230443214302
620442222004
73123324406
oct753513424
9288456434
10128882452
1166829326
12371b4904
1320916c0a
141318cb76
15b4ac5d7
hex7ae9714

128882452 has 6 divisors (see below), whose sum is σ = 225544298. Its totient is φ = 64441224.

The previous prime is 128882437. The next prime is 128882459. The reversal of 128882452 is 254288821.

It can be written as a sum of positive squares in only one way, i.e., 74063236 + 54819216 = 8606^2 + 7404^2 .

It is a super-2 number, since 2×1288824522 = 33221372867064608, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128882459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16110303 + ... + 16110310.

Almost surely, 2128882452 is an apocalyptic number.

It is an amenable number.

128882452 is a deficient number, since it is larger than the sum of its proper divisors (96661846).

128882452 is a wasteful number, since it uses less digits than its factorization.

128882452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32220617 (or 32220615 counting only the distinct ones).

The product of its digits is 81920, while the sum is 40.

The square root of 128882452 is about 11352.6407500634. The cubic root of 128882452 is about 505.1239143034.

The spelling of 128882452 in words is "one hundred twenty-eight million, eight hundred eighty-two thousand, four hundred fifty-two".

Divisors: 1 2 4 32220613 64441226 128882452