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141139947 = 3139737309
BaseRepresentation
bin10000110100110…
…01111111101011
3100211120122121110
420122121333223
5242112434242
622001041403
73332445504
oct1032317753
9324518543
10141139947
1172740593
123b326263
1323319180
1414a5dbab
15c5ce39c
hex8699feb

141139947 has 16 divisors (see below), whose sum is σ = 204757280. Its totient is φ = 85957632.

The previous prime is 141139927. The next prime is 141139949. The reversal of 141139947 is 749931141.

It is not a de Polignac number, because 141139947 - 215 = 141107179 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (141139949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14872 + ... + 22437.

It is an arithmetic number, because the mean of its divisors is an integer number (12797330).

Almost surely, 2141139947 is an apocalyptic number.

141139947 is a deficient number, since it is larger than the sum of its proper divisors (63617333).

141139947 is a wasteful number, since it uses less digits than its factorization.

141139947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37422.

The product of its digits is 27216, while the sum is 39.

The square root of 141139947 is about 11880.2334573021. The cubic root of 141139947 is about 520.6549279921.

The spelling of 141139947 in words is "one hundred forty-one million, one hundred thirty-nine thousand, nine hundred forty-seven".

Divisors: 1 3 13 39 97 291 1261 3783 37309 111927 485017 1455051 3618973 10856919 47046649 141139947