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231200132033 = 1317784625541
BaseRepresentation
bin1101011101010010011…
…0100000101111000001
3211002202201211121112002
43113110212200233001
512241444213211113
6254113433113345
722463232461033
oct3272446405701
9732681747462
10231200132033
118a0624a1192
1238984558855
1318a57223870
14b293a91c53
156032612c58
hex35d49a0bc1

231200132033 has 4 divisors (see below), whose sum is σ = 248984757588. Its totient is φ = 213415506480.

The previous prime is 231200132027. The next prime is 231200132041. The reversal of 231200132033 is 330231002132.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 97139435584 + 134060696449 = 311672^2 + 366143^2 .

It is a cyclic number.

It is not a de Polignac number, because 231200132033 - 220 = 231199083457 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 231200131996 and 231200132014.

It is not an unprimeable number, because it can be changed into a prime (231200132003) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8892312758 + ... + 8892312783.

It is an arithmetic number, because the mean of its divisors is an integer number (62246189397).

Almost surely, 2231200132033 is an apocalyptic number.

It is an amenable number.

231200132033 is a deficient number, since it is larger than the sum of its proper divisors (17784625555).

231200132033 is a wasteful number, since it uses less digits than its factorization.

231200132033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17784625554.

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 231200132033 its reverse (330231002132), we get a palindrome (561431134165).

The spelling of 231200132033 in words is "two hundred thirty-one billion, two hundred million, one hundred thirty-two thousand, thirty-three".

Divisors: 1 13 17784625541 231200132033