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141243937 = 509277493
BaseRepresentation
bin10000110101100…
…11011000100001
3100211202221020221
420122303120201
5242124301222
622003203041
73333360622
oct1032633041
9324687227
10141243937
117280172a
123b376481
13233545c3
1414a89a49
15c6000c7
hex86b3621

141243937 has 4 divisors (see below), whose sum is σ = 141521940. Its totient is φ = 140965936.

The previous prime is 141243923. The next prime is 141243941. The reversal of 141243937 is 739342141.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 739342141 = 4311715411.

It can be written as a sum of positive squares in 2 ways, for example, as 76457536 + 64786401 = 8744^2 + 8049^2 .

It is a cyclic number.

It is not a de Polignac number, because 141243937 - 211 = 141241889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (141243997) 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, 138238 + ... + 139255.

It is an arithmetic number, because the mean of its divisors is an integer number (35380485).

Almost surely, 2141243937 is an apocalyptic number.

It is an amenable number.

141243937 is a deficient number, since it is larger than the sum of its proper divisors (278003).

141243937 is an equidigital number, since it uses as much as digits as its factorization.

141243937 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 278002.

The product of its digits is 18144, while the sum is 34.

The square root of 141243937 is about 11884.6092489404. The cubic root of 141243937 is about 520.7827670986.

The spelling of 141243937 in words is "one hundred forty-one million, two hundred forty-three thousand, nine hundred thirty-seven".

Divisors: 1 509 277493 141243937