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130948215 = 358729881
BaseRepresentation
bin1111100111000…
…01110001110111
3100010101212011220
413303201301313
5232010320330
620554401423
73150020136
oct763416167
9303355156
10130948215
1167a0a372
1237a30273
132118b268
141356991d
15b769710
hex7ce1c77

130948215 has 8 divisors (see below), whose sum is σ = 209517168. Its totient is φ = 69839040.

The previous prime is 130948189. The next prime is 130948277. The reversal of 130948215 is 512849031.

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

It is not a de Polignac number, because 130948215 - 213 = 130940023 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4364926 + ... + 4364955.

It is an arithmetic number, because the mean of its divisors is an integer number (26189646).

Almost surely, 2130948215 is an apocalyptic number.

130948215 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

130948215 is a deficient number, since it is larger than the sum of its proper divisors (78568953).

130948215 is an equidigital number, since it uses as much as digits as its factorization.

130948215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8729889.

The product of its (nonzero) digits is 8640, while the sum is 33.

The square root of 130948215 is about 11443.2606804180. The cubic root of 130948215 is about 507.8083770521.

The spelling of 130948215 in words is "one hundred thirty million, nine hundred forty-eight thousand, two hundred fifteen".

Divisors: 1 3 5 15 8729881 26189643 43649405 130948215