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3131454442 = 26723369063
BaseRepresentation
bin1011101010100110…
…0011001111101010
322002020101100221011
42322221203033222
522403123020232
61234421534134
7140412631534
oct27251431752
98066340834
103131454442
111367696086
1273487434a
133ab9bc02c
14219c64854
15134dad547
hexbaa633ea

3131454442 has 8 divisors (see below), whose sum is σ = 4767289056. Its totient is φ = 1542358092.

The previous prime is 3131454437. The next prime is 3131454449. The reversal of 3131454442 is 2444541313.

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 (3131454449) 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, 11684398 + ... + 11684665.

It is an arithmetic number, because the mean of its divisors is an integer number (595911132).

Almost surely, 23131454442 is an apocalyptic number.

3131454442 is a deficient number, since it is larger than the sum of its proper divisors (1635834614).

3131454442 is a wasteful number, since it uses less digits than its factorization.

3131454442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23369132.

The product of its digits is 23040, while the sum is 31.

The square root of 3131454442 is about 55959.3999431731. The cubic root of 3131454442 is about 1463.0147317351.

Adding to 3131454442 its reverse (2444541313), we get a palindrome (5575995755).

The spelling of 3131454442 in words is "three billion, one hundred thirty-one million, four hundred fifty-four thousand, four hundred forty-two".

Divisors: 1 2 67 134 23369063 46738126 1565727221 3131454442