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231232033201 = 1317787079477
BaseRepresentation
bin1101011101011010000…
…0001101000110110001
3211002211221212100200211
43113112200031012301
512242030400030301
6254120532544121
722464100565251
oct3272640150661
9732757770624
10231232033201
118a0794aaa94
1238993182041
1318a60a12cb0
14b297dd7961
156035315051
hex35d680d1b1

231232033201 has 4 divisors (see below), whose sum is σ = 249019112692. Its totient is φ = 213444953712.

The previous prime is 231232033199. The next prime is 231232033243. The reversal of 231232033201 is 102330232132.

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 131568700176 + 99663333025 = 362724^2 + 315695^2 .

It is a cyclic number.

It is not a de Polignac number, because 231232033201 - 21 = 231232033199 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231232033301) 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, 8893539726 + ... + 8893539751.

It is an arithmetic number, because the mean of its divisors is an integer number (62254778173).

Almost surely, 2231232033201 is an apocalyptic number.

It is an amenable number.

231232033201 is a deficient number, since it is larger than the sum of its proper divisors (17787079491).

231232033201 is a wasteful number, since it uses less digits than its factorization.

231232033201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17787079490.

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 231232033201 its reverse (102330232132), we get a palindrome (333562265333).

The spelling of 231232033201 in words is "two hundred thirty-one billion, two hundred thirty-two million, thirty-three thousand, two hundred one".

Divisors: 1 13 17787079477 231232033201