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1382552831 = 11257489053
BaseRepresentation
bin101001001101000…
…0001010011111111
310120100111221221102
41102122001103333
510312413142311
6345104523315
746155335162
oct12232012377
93510457842
101382552831
1164a462450
1232702053b
131905802ca
14d188dad9
158159a43b
hex526814ff

1382552831 has 8 divisors (see below), whose sum is σ = 1514111184. Its totient is φ = 1251973120.

The previous prime is 1382552819. The next prime is 1382552867.

1382552831 is nontrivially palindromic in base 10.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-1382552831 is a prime.

It is a super-2 number, since 2×13825528312 = 3822904661012229122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1382552881) 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, 241700 + ... + 247353.

It is an arithmetic number, because the mean of its divisors is an integer number (189263898).

Almost surely, 21382552831 is an apocalyptic number.

1382552831 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1382552831 is a deficient number, since it is larger than the sum of its proper divisors (131558353).

1382552831 is a wasteful number, since it uses less digits than its factorization.

1382552831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 489321.

The product of its digits is 57600, while the sum is 38.

The square root of 1382552831 is about 37182.6953165044. The cubic root of 1382552831 is about 1114.0223705603.

The spelling of 1382552831 in words is "one billion, three hundred eighty-two million, five hundred fifty-two thousand, eight hundred thirty-one".

Divisors: 1 11 257 2827 489053 5379583 125686621 1382552831