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1130961 = 31347617
BaseRepresentation
bin100010100000111010001
32010110101110
410110013101
5242142321
640123533
712420156
oct4240721
92113343
101130961
11702787
124665a9
13307a10
1421622d
15175176
hex1141d1

1130961 has 16 divisors (see below), whose sum is σ = 1661184. Its totient is φ = 680064.

The previous prime is 1130957. The next prime is 1130963. The reversal of 1130961 is 1690311.

It is a happy number.

It is not a de Polignac number, because 1130961 - 22 = 1130957 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1130963) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1525 + ... + 2141.

It is an arithmetic number, because the mean of its divisors is an integer number (103824).

21130961 is an apocalyptic number.

It is an amenable number.

1130961 is a deficient number, since it is larger than the sum of its proper divisors (530223).

1130961 is a wasteful number, since it uses less digits than its factorization.

1130961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 680.

The product of its (nonzero) digits is 162, while the sum is 21.

The square root of 1130961 is about 1063.4665015881. The cubic root of 1130961 is about 104.1875621726.

The spelling of 1130961 in words is "one million, one hundred thirty thousand, nine hundred sixty-one".

Divisors: 1 3 13 39 47 141 611 617 1833 1851 8021 24063 28999 86997 376987 1130961