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1048532131 = 9191140949
BaseRepresentation
bin111110011111110…
…101010010100011
32201001222221200101
4332133311102203
54121411012011
6252013403231
734661242663
oct7637652243
92631887611
101048532131
11498961789
12253199517
1313930041a
149d3821a3
15620bb2c1
hex3e7f54a3

1048532131 has 4 divisors (see below), whose sum is σ = 1049674000. Its totient is φ = 1047390264.

The previous prime is 1048532123. The next prime is 1048532143. The reversal of 1048532131 is 1312358401.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1048532131 - 23 = 1048532123 is a prime.

It is a super-2 number, since 2×10485321312 = 2198839259478802322, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1048532131.

It is not an unprimeable number, because it can be changed into a prime (1048532101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 569556 + ... + 571393.

It is an arithmetic number, because the mean of its divisors is an integer number (262418500).

Almost surely, 21048532131 is an apocalyptic number.

1048532131 is a deficient number, since it is larger than the sum of its proper divisors (1141869).

1048532131 is an equidigital number, since it uses as much as digits as its factorization.

1048532131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1141868.

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 1048532131 is about 32381.0458601942. The cubic root of 1048532131 is about 1015.9225052364.

The spelling of 1048532131 in words is "one billion, forty-eight million, five hundred thirty-two thousand, one hundred thirty-one".

Divisors: 1 919 1140949 1048532131