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1660506060 = 223543751857
BaseRepresentation
bin110001011111001…
…0100111111001100
311021201112110002110
41202332110333030
511400042143220
6432434224020
756102032353
oct14276247714
94251473073
101660506060
11782348864
123a4125010
1320602c185
1411a76499a
159aba1be0
hex62f94fcc

1660506060 has 96 divisors (see below), whose sum is σ = 4769436672. Its totient is φ = 431424000.

The previous prime is 1660506037. The next prime is 1660506061. The reversal of 1660506060 is 606050661.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (1660506061) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1937152 + ... + 1938008.

It is an arithmetic number, because the mean of its divisors is an integer number (49681632).

Almost surely, 21660506060 is an apocalyptic number.

1660506060 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 1660506060, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2384718336).

1660506060 is an abundant number, since it is smaller than the sum of its proper divisors (3108930612).

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

1660506060 is a wasteful number, since it uses less digits than its factorization.

1660506060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1663 (or 1661 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 30.

The square root of 1660506060 is about 40749.3074787781. The cubic root of 1660506060 is about 1184.1684564839.

The spelling of 1660506060 in words is "one billion, six hundred sixty million, five hundred six thousand, sixty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 43 60 86 129 172 215 258 430 516 645 751 857 860 1290 1502 1714 2253 2571 2580 3004 3428 3755 4285 4506 5142 7510 8570 9012 10284 11265 12855 15020 17140 22530 25710 32293 36851 45060 51420 64586 73702 96879 110553 129172 147404 161465 184255 193758 221106 322930 368510 387516 442212 484395 552765 643607 645860 737020 968790 1105530 1287214 1930821 1937580 2211060 2574428 3218035 3861642 6436070 7723284 9654105 12872140 19308210 27675101 38616420 55350202 83025303 110700404 138375505 166050606 276751010 332101212 415126515 553502020 830253030 1660506060