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130331121 = 3103941813
BaseRepresentation
bin1111100010010…
…11000111110001
3100002020111200120
413301023013301
5231331043441
620533240453
73141540054
oct761130761
9302214616
10130331121
1167628778
1237793129
132100340b
1413448a9b
15b696966
hex7c4b1f1

130331121 has 8 divisors (see below), whose sum is σ = 173946240. Its totient is φ = 86801712.

The previous prime is 130331111. The next prime is 130331137. The reversal of 130331121 is 121133031.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 130331121 - 225 = 96776689 is a prime.

It is a super-2 number, since 2×1303311212 = 33972402202233282, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 130331121.

It is not an unprimeable number, because it can be changed into a prime (130331101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17790 + ... + 24023.

It is an arithmetic number, because the mean of its divisors is an integer number (21743280).

Almost surely, 2130331121 is an apocalyptic number.

It is an amenable number.

130331121 is a deficient number, since it is larger than the sum of its proper divisors (43615119).

130331121 is a wasteful number, since it uses less digits than its factorization.

130331121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42855.

The product of its (nonzero) digits is 54, while the sum is 15.

The square root of 130331121 is about 11416.2656328591. The cubic root of 130331121 is about 507.0094377136.

Adding to 130331121 its reverse (121133031), we get a palindrome (251464152).

The spelling of 130331121 in words is "one hundred thirty million, three hundred thirty-one thousand, one hundred twenty-one".

Divisors: 1 3 1039 3117 41813 125439 43443707 130331121