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128132524 = 22132464087
BaseRepresentation
bin1111010001100…
…10010110101100
322221002210210001
413220302112230
5230300220044
620414154044
73114052132
oct750622654
9287083701
10128132524
1166366953
1236ab2924
1320713780
1413035752
15b3b02d4
hex7a325ac

128132524 has 12 divisors (see below), whose sum is σ = 241480624. Its totient is φ = 59138064.

The previous prime is 128132491. The next prime is 128132533. The reversal of 128132524 is 425231821.

It is a super-2 number, since 2×1281325242 = 32835887413221152, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 128132492 and 128132501.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1231992 + ... + 1232095.

Almost surely, 2128132524 is an apocalyptic number.

It is an amenable number.

128132524 is a deficient number, since it is larger than the sum of its proper divisors (113348100).

128132524 is a wasteful number, since it uses less digits than its factorization.

128132524 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2464104 (or 2464102 counting only the distinct ones).

The product of its digits is 3840, while the sum is 28.

The square root of 128132524 is about 11319.5637725135. The cubic root of 128132524 is about 504.1422868190.

The spelling of 128132524 in words is "one hundred twenty-eight million, one hundred thirty-two thousand, five hundred twenty-four".

Divisors: 1 2 4 13 26 52 2464087 4928174 9856348 32033131 64066262 128132524