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1081132830 = 232570916943
BaseRepresentation
bin100000001110000…
…1100011100011110
32210100100020102200
41000130030130132
54203232222310
6255140232330
735535322521
oct10034143436
92710306380
101081132830
115052a9108
1226209b6a6
13142ca608b
14a382abb8
1564daa9c0
hex4070c71e

1081132830 has 48 divisors (see below), whose sum is σ = 2815076160. Its totient is φ = 287878464.

The previous prime is 1081132823. The next prime is 1081132907. The reversal of 1081132830 is 382311801.

It is a super-2 number, since 2×10811328302 = 2337696392207617800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1081132794 and 1081132803.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 55339 + ... + 72281.

It is an arithmetic number, because the mean of its divisors is an integer number (58647420).

Almost surely, 21081132830 is an apocalyptic number.

1081132830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1081132830 is an abundant number, since it is smaller than the sum of its proper divisors (1733943330).

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

1081132830 is a wasteful number, since it uses less digits than its factorization.

1081132830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17665 (or 17662 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 27.

The square root of 1081132830 is about 32880.5843926169. The cubic root of 1081132830 is about 1026.3441671090.

The spelling of 1081132830 in words is "one billion, eighty-one million, one hundred thirty-two thousand, eight hundred thirty".

Divisors: 1 2 3 5 6 9 10 15 18 30 45 90 709 1418 2127 3545 4254 6381 7090 10635 12762 16943 21270 31905 33886 50829 63810 84715 101658 152487 169430 254145 304974 508290 762435 1524870 12012587 24025174 36037761 60062935 72075522 108113283 120125870 180188805 216226566 360377610 540566415 1081132830