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32147142 = 235357857
BaseRepresentation
bin111101010100…
…0011011000110
32020111020120220
41322220123012
531212202032
63105005210
7540150306
oct172503306
966436526
1032147142
1117167695
12a923806
1368773a1
1443ab606
152c5012c
hex1ea86c6

32147142 has 8 divisors (see below), whose sum is σ = 64294296. Its totient is φ = 10715712.

The previous prime is 32147131. The next prime is 32147149. The reversal of 32147142 is 24174123.

It is a happy number.

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

32147142 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32147149) 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, 2678923 + ... + 2678934.

It is an arithmetic number, because the mean of its divisors is an integer number (8036787).

Almost surely, 232147142 is an apocalyptic number.

32147142 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.

32147142 is a wasteful number, since it uses less digits than its factorization.

32147142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5357862.

The product of its digits is 1344, while the sum is 24.

The square root of 32147142 is about 5669.8449714256. The cubic root of 32147142 is about 317.9660776283.

The spelling of 32147142 in words is "thirty-two million, one hundred forty-seven thousand, one hundred forty-two".

Divisors: 1 2 3 6 5357857 10715714 16073571 32147142