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140331155149 = 197385850271
BaseRepresentation
bin1000001010110001100…
…0110111111011001101
3111102012220211022012201
42002230120313323031
54244344233431044
6144244531401501
713065352065133
oct2025430677315
9442186738181
10140331155149
1154572307989
1223244753291
131030537a7a3
146b135d1753
1539b4d367d4
hex20ac637ecd

140331155149 has 4 divisors (see below), whose sum is σ = 147717005440. Its totient is φ = 132945304860.

The previous prime is 140331155101. The next prime is 140331155171. The reversal of 140331155149 is 941551133041.

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: 941551133041 = 3279728708453.

It is a cyclic number.

It is not a de Polignac number, because 140331155149 - 221 = 140329057997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140331155749) 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, 3692925117 + ... + 3692925154.

It is an arithmetic number, because the mean of its divisors is an integer number (36929251360).

Almost surely, 2140331155149 is an apocalyptic number.

140331155149 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

140331155149 is a deficient number, since it is larger than the sum of its proper divisors (7385850291).

140331155149 is an equidigital number, since it uses as much as digits as its factorization.

140331155149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7385850290.

The product of its (nonzero) digits is 32400, while the sum is 37.

The spelling of 140331155149 in words is "one hundred forty billion, three hundred thirty-one million, one hundred fifty-five thousand, one hundred forty-nine".

Divisors: 1 19 7385850271 140331155149