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12130154 = 223377127
BaseRepresentation
bin101110010001…
…011101101010
3211211021102222
4232101131222
511101131104
61111554042
7205050611
oct56213552
924737388
1012130154
116935623
12408b922
13268930a
14187a878
1510e91be
hexb9176a

12130154 has 16 divisors (see below), whose sum is σ = 19502208. Its totient is φ = 5643792.

The previous prime is 12130109. The next prime is 12130159. The reversal of 12130154 is 45103121.

It is not an unprimeable number, because it can be changed into a prime (12130159) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1862 + ... + 5265.

It is an arithmetic number, because the mean of its divisors is an integer number (1218888).

Almost surely, 212130154 is an apocalyptic number.

12130154 is a deficient number, since it is larger than the sum of its proper divisors (7372054).

12130154 is a wasteful number, since it uses less digits than its factorization.

12130154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7189.

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 12130154 is about 3482.8370619367. The cubic root of 12130154 is about 229.7675913235.

Adding to 12130154 its reverse (45103121), we get a palindrome (57233275).

The spelling of 12130154 in words is "twelve million, one hundred thirty thousand, one hundred fifty-four".

Divisors: 1 2 23 37 46 74 851 1702 7127 14254 163921 263699 327842 527398 6065077 12130154