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141906013 = 831709711
BaseRepresentation
bin10000111010101…
…01000001011101
3100220000120110021
420131111001131
5242311443023
622025312141
73342116104
oct1035250135
9326016407
10141906013
11731140a7
123b635651
1323526a72
1414bbd03b
15c6d135d
hex875505d

141906013 has 4 divisors (see below), whose sum is σ = 143615808. Its totient is φ = 140196220.

The previous prime is 141905999. The next prime is 141906059. The reversal of 141906013 is 310609141.

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: 310609141 = 688345127.

It is a cyclic number.

It is not a de Polignac number, because 141906013 - 29 = 141905501 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 (141906913) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 854773 + ... + 854938.

It is an arithmetic number, because the mean of its divisors is an integer number (35903952).

Almost surely, 2141906013 is an apocalyptic number.

It is an amenable number.

141906013 is a deficient number, since it is larger than the sum of its proper divisors (1709795).

141906013 is an equidigital number, since it uses as much as digits as its factorization.

141906013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1709794.

The product of its (nonzero) digits is 648, while the sum is 25.

The square root of 141906013 is about 11912.4310281319. The cubic root of 141906013 is about 521.5952159601.

The spelling of 141906013 in words is "one hundred forty-one million, nine hundred six thousand, thirteen".

Divisors: 1 83 1709711 141906013