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120388 = 2230097
BaseRepresentation
bin11101011001000100
320010010211
4131121010
512323023
62325204
71010662
oct353104
9203124
10120388
11824a4
1259804
1342a48
1431c32
1525a0d
hex1d644

120388 has 6 divisors (see below), whose sum is σ = 210686. Its totient is φ = 60192.

The previous prime is 120383. The next prime is 120391. The reversal of 120388 is 883021.

It can be written as a sum of positive squares in only one way, i.e., 66564 + 53824 = 258^2 + 232^2 .

It is not an unprimeable number, because it can be changed into a prime (120383) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15045 + ... + 15052.

2120388 is an apocalyptic number.

It is an amenable number.

120388 is a deficient number, since it is larger than the sum of its proper divisors (90298).

120388 is a wasteful number, since it uses less digits than its factorization.

120388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30101 (or 30099 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 22.

The square root of 120388 is about 346.9697393145. The cubic root of 120388 is about 49.3773448654.

The spelling of 120388 in words is "one hundred twenty thousand, three hundred eighty-eight".

Divisors: 1 2 4 30097 60194 120388