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141660253 = 720237179
BaseRepresentation
bin10000111000110…
…01000001011101
3100212120002100001
420130121001131
5242231112003
622020134301
73340043440
oct1034310135
9325502301
10141660253
1172a66499
123b537391
132346bc47
1414b57657
15c68361d
hex871905d

141660253 has 4 divisors (see below), whose sum is σ = 161897440. Its totient is φ = 121423068.

The previous prime is 141660241. The next prime is 141660271. The reversal of 141660253 is 352066141.

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.

It is a cyclic number.

It is not a de Polignac number, because 141660253 - 25 = 141660221 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 (141660283) 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, 10118583 + ... + 10118596.

It is an arithmetic number, because the mean of its divisors is an integer number (40474360).

Almost surely, 2141660253 is an apocalyptic number.

It is an amenable number.

141660253 is a deficient number, since it is larger than the sum of its proper divisors (20237187).

141660253 is an equidigital number, since it uses as much as digits as its factorization.

141660253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20237186.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 141660253 is about 11902.1112832976. Note that the first 3 decimals coincide. The cubic root of 141660253 is about 521.2939336554.

The spelling of 141660253 in words is "one hundred forty-one million, six hundred sixty thousand, two hundred fifty-three".

Divisors: 1 7 20237179 141660253