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15080121 = 337731093
BaseRepresentation
bin111001100001…
…101010111001
31001101011001000
4321201222321
512330030441
61255115213
7242115240
oct71415271
931334030
1015080121
11856aa11
125072b09
13317cc64
142007957
1514cd2b6
hexe61ab9

15080121 has 32 divisors (see below), whose sum is σ = 25905920. Its totient is φ = 8491392.

The previous prime is 15080119. The next prime is 15080137. The reversal of 15080121 is 12108051.

It is not a de Polignac number, because 15080121 - 21 = 15080119 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 15080094 and 15080103.

It is not an unprimeable number, because it can be changed into a prime (15080101) 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 31 ways as a sum of consecutive naturals, for example, 13251 + ... + 14343.

It is an arithmetic number, because the mean of its divisors is an integer number (809560).

Almost surely, 215080121 is an apocalyptic number.

It is an amenable number.

15080121 is a deficient number, since it is larger than the sum of its proper divisors (10825799).

15080121 is a wasteful number, since it uses less digits than its factorization.

15080121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1182 (or 1176 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 18.

The square root of 15080121 is about 3883.3131473009. The cubic root of 15080121 is about 247.0595287795.

Adding to 15080121 its reverse (12108051), we get a palindrome (27188172).

The spelling of 15080121 in words is "fifteen million, eighty thousand, one hundred twenty-one".

Divisors: 1 3 7 9 21 27 63 73 189 219 511 657 1093 1533 1971 3279 4599 7651 9837 13797 22953 29511 68859 79789 206577 239367 558523 718101 1675569 2154303 5026707 15080121