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143857699357 = 3121011482137
BaseRepresentation
bin1000010111111010010…
…1100100101000011101
3111202022200122022102011
42011332211210220131
54324110032334412
6150030505431221
713251633161131
oct2057645445035
9452280568364
10143857699357
1156011a14829
1223a6979b511
1310747b7c138
146d69add3c1
153b1e7387a7
hex217e964a1d

143857699357 has 12 divisors (see below), whose sum is σ = 150119829468. Its totient is φ = 137838648000.

The previous prime is 143857699331. The next prime is 143857699361. The reversal of 143857699357 is 753996758341.

143857699357 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 140723267161 + 3134432196 = 375131^2 + 55986^2 .

It is not a de Polignac number, because 143857699357 - 211 = 143857697309 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 143857699292 and 143857699301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143857699057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 644008 + ... + 838129.

It is an arithmetic number, because the mean of its divisors is an integer number (12509985789).

Almost surely, 2143857699357 is an apocalyptic number.

It is an amenable number.

143857699357 is a deficient number, since it is larger than the sum of its proper divisors (6262130111).

143857699357 is a wasteful number, since it uses less digits than its factorization.

143857699357 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1482300 (or 1482269 counting only the distinct ones).

The product of its digits is 171460800, while the sum is 67.

The spelling of 143857699357 in words is "one hundred forty-three billion, eight hundred fifty-seven million, six hundred ninety-nine thousand, three hundred fifty-seven".

Divisors: 1 31 101 961 3131 97061 1482137 45946247 149695837 1424333657 4640570947 143857699357