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130331555 = 5188913799
BaseRepresentation
bin1111100010010…
…11001110100011
3100002020112021122
413301023032203
5231331102210
620533242455
73141541244
oct761131643
9302215248
10130331555
1167629032
123779342b
1321003683
1413448ccb
15b696b55
hex7c4b3a3

130331555 has 8 divisors (see below), whose sum is σ = 156492000. Its totient is φ = 104202496.

The previous prime is 130331519. The next prime is 130331561. The reversal of 130331555 is 555133031.

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

It is a cyclic number.

It is not a de Polignac number, because 130331555 - 210 = 130330531 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2546 + ... + 16344.

It is an arithmetic number, because the mean of its divisors is an integer number (19561500).

Almost surely, 2130331555 is an apocalyptic number.

130331555 is a deficient number, since it is larger than the sum of its proper divisors (26160445).

130331555 is a wasteful number, since it uses less digits than its factorization.

130331555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15693.

The product of its (nonzero) digits is 3375, while the sum is 26.

The square root of 130331555 is about 11416.2846408102. The cubic root of 130331555 is about 507.0100004900.

Adding to 130331555 its reverse (555133031), we get a palindrome (685464586).

The spelling of 130331555 in words is "one hundred thirty million, three hundred thirty-one thousand, five hundred fifty-five".

Divisors: 1 5 1889 9445 13799 68995 26066311 130331555