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1081457080 = 2351122910733
BaseRepresentation
bin100000001110101…
…1011100110111000
32210100221201012221
41000131123212320
54203323111310
6255151213424
735541143044
oct10035334670
92710851187
101081457080
115054aa790
12262217274
1314308a842
14a38b3024
1564e21ada
hex4075b9b8

1081457080 has 64 divisors (see below), whose sum is σ = 2666325600. Its totient is φ = 391503360.

The previous prime is 1081457059. The next prime is 1081457101. The reversal of 1081457080 is 807541801.

It is an interprime number because it is at equal distance from previous prime (1081457059) and next prime (1081457101).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 95394 + ... + 106126.

Almost surely, 21081457080 is an apocalyptic number.

1081457080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1081457080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1333162800).

1081457080 is an abundant number, since it is smaller than the sum of its proper divisors (1584868520).

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

1081457080 is a wasteful number, since it uses less digits than its factorization.

1081457080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10984 (or 10980 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 34.

The square root of 1081457080 is about 32885.5147443369. The cubic root of 1081457080 is about 1026.4467628378.

Adding to 1081457080 its reverse (807541801), we get a palindrome (1888998881).

The spelling of 1081457080 in words is "one billion, eighty-one million, four hundred fifty-seven thousand, eighty".

Divisors: 1 2 4 5 8 10 11 20 22 40 44 55 88 110 220 229 440 458 916 1145 1832 2290 2519 4580 5038 9160 10076 10733 12595 20152 21466 25190 42932 50380 53665 85864 100760 107330 118063 214660 236126 429320 472252 590315 944504 1180630 2361260 2457857 4722520 4915714 9831428 12289285 19662856 24578570 27036427 49157140 54072854 98314280 108145708 135182135 216291416 270364270 540728540 1081457080