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3081165690 = 235103997141
BaseRepresentation
bin1011011110100110…
…1101101101111010
321221201202102201210
42313221231231322
522302234300230
61225424023550
7136232322231
oct26751555572
97851672653
103081165690
111341268429
1271ba61bb6
133a1462385
142132d3b18
15130777eb0
hexb7a6db7a

3081165690 has 32 divisors (see below), whose sum is σ = 7466599296. Its totient is φ = 813666240.

The previous prime is 3081165667. The next prime is 3081165701. The reversal of 3081165690 is 965611803.

It is a super-4 number, since 4×30811656904 (a number of 39 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Curzon 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, 495481 + ... + 501660.

It is an arithmetic number, because the mean of its divisors is an integer number (233331228).

Almost surely, 23081165690 is an apocalyptic number.

3081165690 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

3081165690 is an abundant number, since it is smaller than the sum of its proper divisors (4385433606).

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

3081165690 is a wasteful number, since it uses less digits than its factorization.

3081165690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 997254.

The product of its (nonzero) digits is 38880, while the sum is 39.

The square root of 3081165690 is about 55508.2488464552. The cubic root of 3081165690 is about 1455.1407995439.

The spelling of 3081165690 in words is "three billion, eighty-one million, one hundred sixty-five thousand, six hundred ninety".

Divisors: 1 2 3 5 6 10 15 30 103 206 309 515 618 1030 1545 3090 997141 1994282 2991423 4985705 5982846 9971410 14957115 29914230 102705523 205411046 308116569 513527615 616233138 1027055230 1540582845 3081165690