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139949214 = 2323324869
BaseRepresentation
bin10000101011101…
…11010010011110
3100202100011020020
420111313102132
5241311333324
621515333010
73316356126
oct1025672236
9322304206
10139949214
1171aa7a09
123aa51166
1322cc01b2
141482dc86
15c446679
hex857749e

139949214 has 8 divisors (see below), whose sum is σ = 279898440. Its totient is φ = 46649736.

The previous prime is 139949213. The next prime is 139949237. The reversal of 139949214 is 412949931.

It is a sphenic number, since it is the product of 3 distinct primes.

139949214 is an admirable number.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139949213) 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, 11662429 + ... + 11662440.

It is an arithmetic number, because the mean of its divisors is an integer number (34987305).

Almost surely, 2139949214 is an apocalyptic number.

139949214 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

139949214 is a wasteful number, since it uses less digits than its factorization.

139949214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23324874.

The product of its digits is 69984, while the sum is 42.

The square root of 139949214 is about 11830.0132713366. The cubic root of 139949214 is about 519.1866154473.

The spelling of 139949214 in words is "one hundred thirty-nine million, nine hundred forty-nine thousand, two hundred fourteen".

Divisors: 1 2 3 6 23324869 46649738 69974607 139949214