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141240215 = 528248043
BaseRepresentation
bin10000110101100…
…10011110010111
3100211202202011002
420122302132113
5242124141330
622003133515
73333344024
oct1032623627
9324682132
10141240215
11727a9956
123b37429b
13233529bc
1414a8854b
15c5ede45
hex86b2797

141240215 has 4 divisors (see below), whose sum is σ = 169488264. Its totient is φ = 112992168.

The previous prime is 141240163. The next prime is 141240257. The reversal of 141240215 is 512042141.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-141240215 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14124017 + ... + 14124026.

It is an arithmetic number, because the mean of its divisors is an integer number (42372066).

Almost surely, 2141240215 is an apocalyptic number.

141240215 is a deficient number, since it is larger than the sum of its proper divisors (28248049).

141240215 is an equidigital number, since it uses as much as digits as its factorization.

141240215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28248048.

The product of its (nonzero) digits is 320, while the sum is 20.

The square root of 141240215 is about 11884.4526588312. The cubic root of 141240215 is about 520.7781925767.

Adding to 141240215 its reverse (512042141), we get a palindrome (653282356).

The spelling of 141240215 in words is "one hundred forty-one million, two hundred forty thousand, two hundred fifteen".

Divisors: 1 5 28248043 141240215