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31442962 = 217924793
BaseRepresentation
bin111011111110…
…0100000010010
32012011110122011
41313330200102
531022133322
63041533134
7531155305
oct167744022
965143564
1031442962
1116826621
12a6441aa
13668ba05
144266b3c
152b61677
hex1dfc812

31442962 has 8 divisors (see below), whose sum is σ = 49938876. Its totient is φ = 14796672.

The previous prime is 31442951. The next prime is 31442963. The reversal of 31442962 is 26924413.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 28847641 + 2595321 = 5371^2 + 1611^2 .

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

It is not an unprimeable number, because it can be changed into a prime (31442963) 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, 462363 + ... + 462430.

Almost surely, 231442962 is an apocalyptic number.

31442962 is a deficient number, since it is larger than the sum of its proper divisors (18495914).

31442962 is a wasteful number, since it uses less digits than its factorization.

31442962 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 924812.

The product of its digits is 10368, while the sum is 31.

The square root of 31442962 is about 5607.4024289327. The cubic root of 31442962 is about 315.6272443326.

The spelling of 31442962 in words is "thirty-one million, four hundred forty-two thousand, nine hundred sixty-two".

Divisors: 1 2 17 34 924793 1849586 15721481 31442962