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1084515380 = 225134171213
BaseRepresentation
bin100000010100100…
…0110010000110100
32210120201002102022
41000221012100310
54210113443010
6255340532312
735606141264
oct10051062064
92716632368
101084515380
115071a9503
12263251098
131438bb8a0
14a406b7a4
1565327d55
hex40a46434

1084515380 has 24 divisors (see below), whose sum is σ = 2452673832. Its totient is φ = 400436352.

The previous prime is 1084515379. The next prime is 1084515451. The reversal of 1084515380 is 835154801.

It can be written as a sum of positive squares in 4 ways, for example, as 11035684 + 1073479696 = 3322^2 + 32764^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1084515380.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2085347 + ... + 2085866.

It is an arithmetic number, because the mean of its divisors is an integer number (102194743).

Almost surely, 21084515380 is an apocalyptic number.

1084515380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1084515380 is an abundant number, since it is smaller than the sum of its proper divisors (1368158452).

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

1084515380 is a wasteful number, since it uses less digits than its factorization.

1084515380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4171235 (or 4171233 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 35.

The square root of 1084515380 is about 32931.9811125902. The cubic root of 1084515380 is about 1027.4134301516.

The spelling of 1084515380 in words is "one billion, eighty-four million, five hundred fifteen thousand, three hundred eighty".

Divisors: 1 2 4 5 10 13 20 26 52 65 130 260 4171213 8342426 16684852 20856065 41712130 54225769 83424260 108451538 216903076 271128845 542257690 1084515380