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1295128 = 231789107
BaseRepresentation
bin100111100001100011000
32102210120201
410330030120
5312421003
643431544
714002612
oct4741430
92383521
101295128
1180505a
125255b4
13364663
14259db2
151a8b1d
hex13c318

1295128 has 32 divisors (see below), whose sum is σ = 2624400. Its totient is φ = 596992.

The previous prime is 1295113. The next prime is 1295131. The reversal of 1295128 is 8215921.

It is a junction number, because it is equal to n+sod(n) for n = 1295096 and 1295105.

It is a congruent number.

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, 12051 + ... + 12157.

21295128 is an apocalyptic number.

It is an amenable number.

1295128 is an abundant number, since it is smaller than the sum of its proper divisors (1329272).

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

1295128 is a wasteful number, since it uses less digits than its factorization.

1295128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219 (or 215 counting only the distinct ones).

The product of its digits is 1440, while the sum is 28.

The square root of 1295128 is about 1138.0369062557. The cubic root of 1295128 is about 109.0027774732.

The spelling of 1295128 in words is "one million, two hundred ninety-five thousand, one hundred twenty-eight".

Divisors: 1 2 4 8 17 34 68 89 107 136 178 214 356 428 712 856 1513 1819 3026 3638 6052 7276 9523 12104 14552 19046 38092 76184 161891 323782 647564 1295128