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3131233442 = 21977947293
BaseRepresentation
bin1011101010100010…
…1101010010100010
322002012222010202222
42322220231102202
522403043432232
61234413111042
7140411021321
oct27250552242
98065863688
103131233442
111367555037
12734788482
133ab94256c
14219c080b8
15134d67d12
hexbaa2d4a2

3131233442 has 8 divisors (see below), whose sum is σ = 4720692636. Its totient is φ = 1557669232.

The previous prime is 3131233433. The next prime is 3131233453. The reversal of 3131233442 is 2443321313.

It can be written as a sum of positive squares in 2 ways, for example, as 3130290601 + 942841 = 55949^2 + 971^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3973253 + ... + 3974040.

Almost surely, 23131233442 is an apocalyptic number.

3131233442 is a deficient number, since it is larger than the sum of its proper divisors (1589459194).

3131233442 is a wasteful number, since it uses less digits than its factorization.

3131233442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7947492.

The product of its digits is 5184, while the sum is 26.

The square root of 3131233442 is about 55957.4252624261. The cubic root of 3131233442 is about 1462.9803138772.

Adding to 3131233442 its reverse (2443321313), we get a palindrome (5574554755).

The spelling of 3131233442 in words is "three billion, one hundred thirty-one million, two hundred thirty-three thousand, four hundred forty-two".

Divisors: 1 2 197 394 7947293 15894586 1565616721 3131233442