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142320142221072 = 24331123777320337
BaseRepresentation
bin100000010111000001111101…
…100001010111111100010000
3200122220200011102011021012020
4200113001331201113330100
5122123233122402033242
61222404545402531440
741656201540544214
oct4027017541277420
9618820142137166
10142320142221072
11413906a7007122
1213b6671b806b80
136154968a8557a
142720490026944
15116c1181386ec
hex81707d857f10

142320142221072 has 80 divisors (see below), whose sum is σ = 379827191265792. Its totient is φ = 45872608942080.

The previous prime is 142320142221043. The next prime is 142320142221073. The reversal of 142320142221072 is 270122241023241.

It is not an unprimeable number, because it can be changed into a prime (142320142221073) 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, 36819513 + ... + 40500824.

Almost surely, 2142320142221072 is an apocalyptic number.

142320142221072 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

142320142221072 is an abundant number, since it is smaller than the sum of its proper divisors (237507049044720).

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

142320142221072 is a wasteful number, since it uses less digits than its factorization.

142320142221072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77321616 (or 77321610 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 33.

The spelling of 142320142221072 in words is "one hundred forty-two trillion, three hundred twenty billion, one hundred forty-two million, two hundred twenty-one thousand, seventy-two".

Divisors: 1 2 3 4 6 8 12 16 24 31 48 62 93 124 186 248 372 496 744 1237 1488 2474 3711 4948 7422 9896 14844 19792 29688 38347 59376 76694 115041 153388 230082 306776 460164 613552 920328 1840656 77320337 154640674 231961011 309281348 463922022 618562696 927844044 1237125392 1855688088 2396930447 3711376176 4793860894 7190791341 9587721788 14381582682 19175443576 28763165364 38350887152 57526330728 95645256869 115052661456 191290513738 286935770607 382581027476 573871541214 765162054952 1147743082428 1530324109904 2295486164856 2965002962939 4590972329712 5930005925878 8895008888817 11860011851756 17790017777634 23720023703512 35580035555268 47440047407024 71160071110536 142320142221072