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238800913 = 13151239509
BaseRepresentation
bin11100011101111…
…01000000010001
3121122100100021021
432032331000101
5442113112123
635410155441
75626526401
oct1616750021
9548310237
10238800913
1111288472a
1267b82b81
133a621120
1423a02801
1515e70c5d
hexe3bd011

238800913 has 16 divisors (see below), whose sum is σ = 260467200. Its totient is φ = 217627200.

The previous prime is 238800901. The next prime is 238800929. The reversal of 238800913 is 319008832.

It is a cyclic number.

It is not a de Polignac number, because 238800913 - 217 = 238669841 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (238800953) 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 15 ways as a sum of consecutive naturals, for example, 468903 + ... + 469411.

It is an arithmetic number, because the mean of its divisors is an integer number (16279200).

Almost surely, 2238800913 is an apocalyptic number.

It is an amenable number.

238800913 is a deficient number, since it is larger than the sum of its proper divisors (21666287).

238800913 is a wasteful number, since it uses less digits than its factorization.

238800913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 912.

The product of its (nonzero) digits is 10368, while the sum is 34.

The square root of 238800913 is about 15453.1845585303. The cubic root of 238800913 is about 620.4098166361.

The spelling of 238800913 in words is "two hundred thirty-eight million, eight hundred thousand, nine hundred thirteen".

Divisors: 1 13 151 239 509 1963 3107 6617 36089 76859 121651 469157 999167 1581463 18369301 238800913