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12020668488 = 2333471184069
BaseRepresentation
bin10110011000111110…
…01101100001001000
31011000202000020012000
423030133031201020
5144104242342423
65304444351000
7603611665503
oct131437154110
934022006160
1012020668488
115109399174
1223b5845460
1311975202ba
1482067c13a
154a54a4843
hex2cc7cd848

12020668488 has 64 divisors (see below), whose sum is σ = 34101216000. Its totient is φ = 3921633216.

The previous prime is 12020668481. The next prime is 12020668493. The reversal of 12020668488 is 88486602021.

It is a super-2 number, since 2×120206684882 (a number of 21 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (12020668481) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 581883 + ... + 602186.

It is an arithmetic number, because the mean of its divisors is an integer number (532831500).

Almost surely, 212020668488 is an apocalyptic number.

12020668488 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

12020668488 is an abundant number, since it is smaller than the sum of its proper divisors (22080547512).

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

12020668488 is a wasteful number, since it uses less digits than its factorization.

12020668488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1184131 (or 1184121 counting only the distinct ones).

The product of its (nonzero) digits is 294912, while the sum is 45.

The spelling of 12020668488 in words is "twelve billion, twenty million, six hundred sixty-eight thousand, four hundred eighty-eight".

Divisors: 1 2 3 4 6 8 9 12 18 24 27 36 47 54 72 94 108 141 188 216 282 376 423 564 846 1128 1269 1692 2538 3384 5076 10152 1184069 2368138 3552207 4736276 7104414 9472552 10656621 14208828 21313242 28417656 31969863 42626484 55651243 63939726 85252968 111302486 127879452 166953729 222604972 255758904 333907458 445209944 500861187 667814916 1001722374 1335629832 1502583561 2003444748 3005167122 4006889496 6010334244 12020668488