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1132381884 = 22394365157
BaseRepresentation
bin100001101111110…
…1100011010111100
32220220202221220210
41003133230122330
54304342210014
6304210512420
740030041624
oct10337543274
92826687823
101132381884
115312222a7
12277295710
131507aab6a
14aa56b884
1569630859
hex437ec6bc

1132381884 has 12 divisors (see below), whose sum is σ = 2642224424. Its totient is φ = 377460624.

The previous prime is 1132381847. The next prime is 1132381889. The reversal of 1132381884 is 4881832311.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×11323818842 = 2564577462422778912, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1132381889) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47182567 + ... + 47182590.

Almost surely, 21132381884 is an apocalyptic number.

It is an amenable number.

1132381884 is an abundant number, since it is smaller than the sum of its proper divisors (1509842540).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1132381884 is a wasteful number, since it uses less digits than its factorization.

1132381884 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94365164 (or 94365162 counting only the distinct ones).

The product of its digits is 36864, while the sum is 39.

The square root of 1132381884 is about 33650.8823658459. The cubic root of 1132381884 is about 1042.3117596276.

It can be divided in two parts, 1132381 and 884, that added together give a triangular number (1133265 = T1505).

The spelling of 1132381884 in words is "one billion, one hundred thirty-two million, three hundred eighty-one thousand, eight hundred eighty-four".

Divisors: 1 2 3 4 6 12 94365157 188730314 283095471 377460628 566190942 1132381884