Search a number
-
+
140512201 = 197395379
BaseRepresentation
bin10000110000000…
…00101111001001
3100210101202111121
420120000233021
5241432342301
621535355241
73324222364
oct1030005711
9323352447
10140512201
1172351995
123b082b21
132315951b
14149390db
15c5083a1
hex8600bc9

140512201 has 4 divisors (see below), whose sum is σ = 147907600. Its totient is φ = 133116804.

The previous prime is 140512159. The next prime is 140512213. The reversal of 140512201 is 102215041.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 102215041 = 195379739.

It is a cyclic number.

It is not a de Polignac number, because 140512201 - 221 = 138415049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140512231) 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, 3697671 + ... + 3697708.

It is an arithmetic number, because the mean of its divisors is an integer number (36976900).

Almost surely, 2140512201 is an apocalyptic number.

It is an amenable number.

140512201 is a deficient number, since it is larger than the sum of its proper divisors (7395399).

140512201 is an equidigital number, since it uses as much as digits as its factorization.

140512201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7395398.

The product of its (nonzero) digits is 80, while the sum is 16.

The square root of 140512201 is about 11853.7842480788. The cubic root of 140512201 is about 519.8818777554.

Adding to 140512201 its reverse (102215041), we get a palindrome (242727242).

The spelling of 140512201 in words is "one hundred forty million, five hundred twelve thousand, two hundred one".

Divisors: 1 19 7395379 140512201