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143121046552 = 23115647288007
BaseRepresentation
bin1000010101001010101…
…1011101110000011000
3111200102100111110201221
42011102223131300120
54321102441442202
6145425432421424
713224446552251
oct2052253356030
9450370443657
10143121046552
1155774110660
12238a2b47874
131065b3788c3
146cd9d43b28
153ac9c26037
hex2152addc18

143121046552 has 32 divisors (see below), whose sum is σ = 292800453120. Its totient is φ = 65043275040.

The previous prime is 143121046517. The next prime is 143121046571. The reversal of 143121046552 is 255640121341.

It is a super-2 number, since 2×1431210465522 (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 352933 + ... + 640939.

It is an arithmetic number, because the mean of its divisors is an integer number (9150014160).

Almost surely, 2143121046552 is an apocalyptic number.

It is an amenable number.

143121046552 is an abundant number, since it is smaller than the sum of its proper divisors (149679406568).

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

143121046552 is a wasteful number, since it uses less digits than its factorization.

143121046552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 293671 (or 293667 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 34.

Adding to 143121046552 its reverse (255640121341), we get a palindrome (398761167893).

It can be divided in two parts, 14312104 and 6552, that added together give a square (14318656 = 37842).

The spelling of 143121046552 in words is "one hundred forty-three billion, one hundred twenty-one million, forty-six thousand, five hundred fifty-two".

Divisors: 1 2 4 8 11 22 44 88 5647 11294 22588 45176 62117 124234 248468 288007 496936 576014 1152028 2304056 3168077 6336154 12672308 25344616 1626375529 3252751058 6505502116 13011004232 17890130819 35780261638 71560523276 143121046552