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144979666244 = 22729211384499
BaseRepresentation
bin1000011100000101110…
…1100010010101000100
3111212012212211010122022
42013001131202111010
54333404243304434
6150334105222312
713321505554460
oct2070135422504
9455185733568
10144979666244
1156538273096
1224121491998
131089645157a
147034b194a0
153b87ead22e
hex21c1762544

144979666244 has 48 divisors (see below), whose sum is σ = 300103440000. Its totient is φ = 59962484736.

The previous prime is 144979666219. The next prime is 144979666259. The reversal of 144979666244 is 442666979441.

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, 1673507 + ... + 1758005.

It is an arithmetic number, because the mean of its divisors is an integer number (6252155000).

Almost surely, 2144979666244 is an apocalyptic number.

144979666244 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

144979666244 is an abundant number, since it is smaller than the sum of its proper divisors (155123773756).

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

144979666244 is a wasteful number, since it uses less digits than its factorization.

144979666244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86652 (or 86650 counting only the distinct ones).

The product of its digits is 62705664, while the sum is 62.

The spelling of 144979666244 in words is "one hundred forty-four billion, nine hundred seventy-nine million, six hundred sixty-six thousand, two hundred forty-four".

Divisors: 1 2 4 7 14 28 29 58 116 203 406 812 2113 4226 8452 14791 29582 59164 61277 84499 122554 168998 245108 337996 428939 591493 857878 1182986 1715756 2365972 2450471 4900942 9801884 17153297 34306594 68613188 178546387 357092774 714185548 1249824709 2499649418 4999298836 5177845223 10355690446 20711380892 36244916561 72489833122 144979666244