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124404 = 22371481
BaseRepresentation
bin11110010111110100
320022122120
4132113310
512440104
62355540
71025460
oct362764
9208576
10124404
1185515
125bbb0
1344817
14334a0
1526cd9
hex1e5f4

124404 has 24 divisors (see below), whose sum is σ = 331968. Its totient is φ = 35520.

The previous prime is 124367. The next prime is 124427. The reversal of 124404 is 404421.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 657 + ... + 824.

It is an arithmetic number, because the mean of its divisors is an integer number (13832).

2124404 is an apocalyptic number.

124404 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

124404 is an abundant number, since it is smaller than the sum of its proper divisors (207564).

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

124404 is a wasteful number, since it uses less digits than its factorization.

124404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1495 (or 1493 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 15.

The square root of 124404 is about 352.7095122052. The cubic root of 124404 is about 49.9204066987.

Adding to 124404 its reverse (404421), we get a palindrome (528825).

It can be divided in two parts, 124 and 404, that added together give a triangular number (528 = T32).

The spelling of 124404 in words is "one hundred twenty-four thousand, four hundred four", and thus it is an iban number.

Divisors: 1 2 3 4 6 7 12 14 21 28 42 84 1481 2962 4443 5924 8886 10367 17772 20734 31101 41468 62202 124404