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234476993 = 1812295657
BaseRepresentation
bin11011111100111…
…01010111000001
3121100012122222002
431332131113001
5440011230433
635133353345
75545010252
oct1576352701
9540178862
10234476993
111103a1043
1266638855
1339768caa
14231d8b29
15158b99e8
hexdf9d5c1

234476993 has 8 divisors (see below), whose sum is σ = 236843880. Its totient is φ = 232122240.

The previous prime is 234476989. The next prime is 234476999. The reversal of 234476993 is 399674432.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1517824 + 232959169 = 1232^2 + 15263^2 .

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 234476993 - 22 = 234476989 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (234476999) by changing a digit.

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, 38621 + ... + 44277.

It is an arithmetic number, because the mean of its divisors is an integer number (29605485).

Almost surely, 2234476993 is an apocalyptic number.

It is an amenable number.

234476993 is a deficient number, since it is larger than the sum of its proper divisors (2366887).

234476993 is a wasteful number, since it uses less digits than its factorization.

234476993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6067.

The product of its digits is 979776, while the sum is 47.

The square root of 234476993 is about 15312.6416075085. The cubic root of 234476993 is about 616.6424407657.

The spelling of 234476993 in words is "two hundred thirty-four million, four hundred seventy-six thousand, nine hundred ninety-three".

Divisors: 1 181 229 5657 41449 1023917 1295453 234476993