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141678013 = 424333391
BaseRepresentation
bin10000111000111…
…01010110111101
3100212120222200211
420130131112331
5242232144023
622020352421
73340146301
oct1034352675
9325528624
10141678013
1172a78874
123b545711
1323477059
1414b5dd01
15c688a0d
hex871d5bd

141678013 has 4 divisors (see below), whose sum is σ = 141715648. Its totient is φ = 141640380.

The previous prime is 141678011. The next prime is 141678023. The reversal of 141678013 is 310876141.

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: 310876141 = 1392236519.

It is a cyclic number.

It is not a de Polignac number, because 141678013 - 21 = 141678011 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 (141678011) 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, 12453 + ... + 20938.

It is an arithmetic number, because the mean of its divisors is an integer number (35428912).

Almost surely, 2141678013 is an apocalyptic number.

It is an amenable number.

141678013 is a deficient number, since it is larger than the sum of its proper divisors (37635).

141678013 is an equidigital number, since it uses as much as digits as its factorization.

141678013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37634.

The product of its (nonzero) digits is 4032, while the sum is 31.

The square root of 141678013 is about 11902.8573460325. The cubic root of 141678013 is about 521.3157176849.

The spelling of 141678013 in words is "one hundred forty-one million, six hundred seventy-eight thousand, thirteen".

Divisors: 1 4243 33391 141678013