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20130124 = 2271076719
BaseRepresentation
bin100110011001…
…0100101001100
31101212201100011
41030302211030
520123130444
61555243004
7333050260
oct114624514
941781304
1020130124
11103aa073
1268a9464
13422a721
1429600a0
151b79734
hex133294c

20130124 has 24 divisors (see below), whose sum is σ = 40642560. Its totient is φ = 8545296.

The previous prime is 20130079. The next prime is 20130163. The reversal of 20130124 is 42103102.

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, 364 + ... + 6355.

It is an arithmetic number, because the mean of its divisors is an integer number (1693440).

Almost surely, 220130124 is an apocalyptic number.

It is an amenable number.

20130124 is an abundant number, since it is smaller than the sum of its proper divisors (20512436).

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

20130124 is a wasteful number, since it uses less digits than its factorization.

20130124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6837 (or 6835 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 20130124 is about 4486.6606735968. The cubic root of 20130124 is about 272.0291743505.

Adding to 20130124 its reverse (42103102), we get a palindrome (62233226).

The spelling of 20130124 in words is "twenty million, one hundred thirty thousand, one hundred twenty-four".

Divisors: 1 2 4 7 14 28 107 214 428 749 1498 2996 6719 13438 26876 47033 94066 188132 718933 1437866 2875732 5032531 10065062 20130124