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12550528 = 27711381
BaseRepresentation
bin101111111000…
…000110000000
3212121122002101
4233320012000
511203104103
61125000144
7211451314
oct57700600
925548071
1012550528
1170a2441
124253054
1327a5763
141949b44
15117da1d
hexbf8180

12550528 has 32 divisors (see below), whose sum is σ = 25373520. Its totient is φ = 6182400.

The previous prime is 12550523. The next prime is 12550529. The reversal of 12550528 is 82505521.

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

It is a junction number, because it is equal to n+sod(n) for n = 12550496 and 12550505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12550523) 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, 8398 + ... + 9778.

Almost surely, 212550528 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 12550528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12686760).

12550528 is an abundant number, since it is smaller than the sum of its proper divisors (12822992).

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

12550528 is an equidigital number, since it uses as much as digits as its factorization.

12550528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1466 (or 1454 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 28.

The square root of 12550528 is about 3542.6724375815. The cubic root of 12550528 is about 232.3917282129.

It can be divided in two parts, 125 and 50528, that added together give a cube (50653 = 373).

The spelling of 12550528 in words is "twelve million, five hundred fifty thousand, five hundred twenty-eight".

Divisors: 1 2 4 8 16 32 64 71 128 142 284 568 1136 1381 2272 2762 4544 5524 9088 11048 22096 44192 88384 98051 176768 196102 392204 784408 1568816 3137632 6275264 12550528