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1145180790 = 2325131675861
BaseRepresentation
bin100010001000010…
…0001001001110110
32221210212012201100
41010100201021312
54321131241130
6305345110530
740243606335
oct10420411166
92853765640
101145180790
11538474306
1227b628446
1315333c690
14ac13dd1c
156a80cc60
hex44421276

1145180790 has 96 divisors (see below), whose sum is σ = 3226257216. Its totient is φ = 280154880.

The previous prime is 1145180789. The next prime is 1145180791. The reversal of 1145180790 is 970815411.

It is an interprime number because it is at equal distance from previous prime (1145180789) and next prime (1145180791).

It is a super-2 number, since 2×11451807902 = 2622878083570048200, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1145180791) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 192460 + ... + 198320.

It is an arithmetic number, because the mean of its divisors is an integer number (33606846).

Almost surely, 21145180790 is an apocalyptic number.

1145180790 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1145180790, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1613128608).

1145180790 is an abundant number, since it is smaller than the sum of its proper divisors (2081076426).

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

1145180790 is a wasteful number, since it uses less digits than its factorization.

1145180790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6054 (or 6051 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 36.

The square root of 1145180790 is about 33840.5199428141. The cubic root of 1145180790 is about 1046.2240154045.

The spelling of 1145180790 in words is "one billion, one hundred forty-five million, one hundred eighty thousand, seven hundred ninety".

Divisors: 1 2 3 5 6 9 10 13 15 18 26 30 39 45 65 78 90 117 130 167 195 234 334 390 501 585 835 1002 1170 1503 1670 2171 2505 3006 4342 5010 5861 6513 7515 10855 11722 13026 15030 17583 19539 21710 29305 32565 35166 39078 52749 58610 65130 76193 87915 97695 105498 152386 175830 195390 228579 263745 380965 457158 527490 685737 761930 978787 1142895 1371474 1957574 2285790 2936361 3428685 4893935 5872722 6857370 8809083 9787870 12724231 14681805 17618166 25448462 29363610 38172693 44045415 63621155 76345386 88090830 114518079 127242310 190863465 229036158 381726930 572590395 1145180790