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139885331518900 = 225211214335933303
BaseRepresentation
bin11111110011100110010111…
…011111101001010110110100
3200100021220111021021011002201
4133303212113133221112310
5121313340124332101100
61213302233435314244
741315244630213412
oct3763462737512664
9610256437234081
10139885331518900
11406320439261a0
121383286a5ab984
13600918cc6a156
1426786b40a22b2
151128b1262536a
hex7f39977e95b4

139885331518900 has 72 divisors (see below), whose sum is σ = 331162236385344. Its totient is φ = 50865011385600.

The previous prime is 139885331518873. The next prime is 139885331518903. The reversal of 139885331518900 is 9815133588931.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139885331518903) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20609649 + ... + 26542951.

It is an arithmetic number, because the mean of its divisors is an integer number (4599475505352).

Almost surely, 2139885331518900 is an apocalyptic number.

139885331518900 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

139885331518900 is an abundant number, since it is smaller than the sum of its proper divisors (191276904866444).

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

139885331518900 is a wasteful number, since it uses less digits than its factorization.

139885331518900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5954761 (or 5954754 counting only the distinct ones).

The product of its (nonzero) digits is 27993600, while the sum is 64.

The spelling of 139885331518900 in words is "one hundred thirty-nine trillion, eight hundred eighty-five billion, three hundred thirty-one million, five hundred eighteen thousand, nine hundred".

Divisors: 1 2 4 5 10 11 20 22 25 44 50 55 100 110 220 275 550 1100 21433 42866 85732 107165 214330 235763 428660 471526 535825 943052 1071650 1178815 2143300 2357630 4715260 5894075 5933303 11788150 11866606 23576300 23733212 29666515 59333030 65266333 118666060 130532666 148332575 261065332 296665150 326331665 593330300 652663330 1305326660 1631658325 3263316650 6526633300 127168483199 254336966398 508673932796 635842415995 1271684831990 1398853315189 2543369663980 2797706630378 3179212079975 5595413260756 6358424159950 6994266575945 12716848319900 13988533151890 27977066303780 34971332879725 69942665759450 139885331518900