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1072442031 = 3874140897
BaseRepresentation
bin111111111011000…
…010101010101111
32202201222200220020
4333323002222233
54144021121111
6254230053223
735401415103
oct7773025257
92681880806
101072442031
11500402631
1225b1aa213
131412523ab
14a2607903
1564240906
hex3fec2aaf

1072442031 has 8 divisors (see below), whose sum is σ = 1430121264. Its totient is φ = 714862080.

The previous prime is 1072442029. The next prime is 1072442039. The reversal of 1072442031 is 1302442701.

It is a happy number.

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

It is not a de Polignac number, because 1072442031 - 21 = 1072442029 is a prime.

It is a super-2 number, since 2×10724420312 = 2300263819710809922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1072441992 and 1072442010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1072442039) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5775 + ... + 46671.

It is an arithmetic number, because the mean of its divisors is an integer number (178765158).

Almost surely, 21072442031 is an apocalyptic number.

1072442031 is a deficient number, since it is larger than the sum of its proper divisors (357679233).

1072442031 is an equidigital number, since it uses as much as digits as its factorization.

1072442031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49641.

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

The square root of 1072442031 is about 32748.1607269782. The cubic root of 1072442031 is about 1023.5866400938.

Adding to 1072442031 its reverse (1302442701), we get a palindrome (2374884732).

The spelling of 1072442031 in words is "one billion, seventy-two million, four hundred forty-two thousand, thirty-one".

Divisors: 1 3 8741 26223 40897 122691 357480677 1072442031