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107428 = 22107251
BaseRepresentation
bin11010001110100100
312110100211
4122032210
511414203
62145204
7625126
oct321644
9173324
10107428
1173792
1252204
1339b89
142b216
1521c6d
hex1a3a4

107428 has 12 divisors (see below), whose sum is σ = 190512. Its totient is φ = 53000.

The previous prime is 107377. The next prime is 107441. The reversal of 107428 is 824701.

It is a junction number, because it is equal to n+sod(n) for n = 107399 and 107408.

It is an unprimeable number.

107428 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 303 + ... + 553.

It is an arithmetic number, because the mean of its divisors is an integer number (15876).

2107428 is an apocalyptic number.

It is an amenable number.

107428 is a deficient number, since it is larger than the sum of its proper divisors (83084).

107428 is a wasteful number, since it uses less digits than its factorization.

107428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 362 (or 360 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 22.

The square root of 107428 is about 327.7621088534. The cubic root of 107428 is about 47.5378092317.

It can be divided in two parts, 107 and 428, that multiplied together give a square (45796 = 2142).

The spelling of 107428 in words is "one hundred seven thousand, four hundred twenty-eight".

Divisors: 1 2 4 107 214 251 428 502 1004 26857 53714 107428