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1081255130 = 25151716063
BaseRepresentation
bin100000001110010…
…1010010011011010
32210100120110012022
41000130222103122
54203300131010
6255143014442
735536342214
oct10034522332
92710513168
101081255130
11505381a8a
1226213a422
13143019947
14a385d5b4
1564dd1d55
hex4072a4da

1081255130 has 16 divisors (see below), whose sum is σ = 1959151104. Its totient is φ = 429637200.

The previous prime is 1081255127. The next prime is 1081255141. The reversal of 1081255130 is 315521801.

It is a happy number.

It is a super-2 number, since 2×10812551302 = 2338225312302633800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1081255130.

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 7 ways as a sum of consecutive naturals, for example, 356522 + ... + 359541.

It is an arithmetic number, because the mean of its divisors is an integer number (122446944).

Almost surely, 21081255130 is an apocalyptic number.

1081255130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1081255130 is a deficient number, since it is larger than the sum of its proper divisors (877895974).

1081255130 is a wasteful number, since it uses less digits than its factorization.

1081255130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 716221.

The product of its (nonzero) digits is 1200, while the sum is 26.

The square root of 1081255130 is about 32882.4441001578. Note that the first 3 decimals coincide. The cubic root of 1081255130 is about 1026.3828663806.

Adding to 1081255130 its reverse (315521801), we get a palindrome (1396776931).

The spelling of 1081255130 in words is "one billion, eighty-one million, two hundred fifty-five thousand, one hundred thirty".

Divisors: 1 2 5 10 151 302 755 1510 716063 1432126 3580315 7160630 108125513 216251026 540627565 1081255130