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230172195 = 35111394983
BaseRepresentation
bin11011011100000…
…10011000100011
3121001002221220010
431232002120203
5432411002240
634501220003
75463300651
oct1556023043
9531087803
10230172195
11108a20860
1265101603
13388bc786
14227d7dd1
1515319280
hexdb82623

230172195 has 16 divisors (see below), whose sum is σ = 401755392. Its totient is φ = 111598560.

The previous prime is 230172181. The next prime is 230172199. The reversal of 230172195 is 591271032.

It is not a de Polignac number, because 230172195 - 28 = 230171939 is a prime.

It is a super-2 number, since 2×2301721952 = 105958478702236050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (230172199) 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, 697327 + ... + 697656.

It is an arithmetic number, because the mean of its divisors is an integer number (25109712).

Almost surely, 2230172195 is an apocalyptic number.

230172195 is a deficient number, since it is larger than the sum of its proper divisors (171583197).

230172195 is a wasteful number, since it uses less digits than its factorization.

230172195 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1395002.

The product of its (nonzero) digits is 3780, while the sum is 30.

The square root of 230172195 is about 15171.4269269571. The cubic root of 230172195 is about 612.8454316947.

The spelling of 230172195 in words is "two hundred thirty million, one hundred seventy-two thousand, one hundred ninety-five".

Divisors: 1 3 5 11 15 33 55 165 1394983 4184949 6974915 15344813 20924745 46034439 76724065 230172195