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130005146 = 2233278981
BaseRepresentation
bin1111011111110…
…11100010011010
3100001121221112102
413233323202122
5231240131041
620522243402
73136011515
oct757734232
9301557472
10130005146
1167425877
1237656562
1320c1ac2b
14133a1d7c
15b63009b
hex7bfb89a

130005146 has 8 divisors (see below), whose sum is σ = 195845364. Its totient is φ = 64723360.

The previous prime is 130005119. The next prime is 130005151. The reversal of 130005146 is 641500031.

It can be written as a sum of positive squares in 2 ways, for example, as 122655625 + 7349521 = 11075^2 + 2711^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 139025 + ... + 139956.

Almost surely, 2130005146 is an apocalyptic number.

130005146 is a deficient number, since it is larger than the sum of its proper divisors (65840218).

130005146 is a wasteful number, since it uses less digits than its factorization.

130005146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 279216.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 130005146 is about 11401.9799157866. The cubic root of 130005146 is about 506.5863860761.

Adding to 130005146 its reverse (641500031), we get a palindrome (771505177).

The spelling of 130005146 in words is "one hundred thirty million, five thousand, one hundred forty-six".

Divisors: 1 2 233 466 278981 557962 65002573 130005146