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143145032212 = 22721356179369
BaseRepresentation
bin1000010101010000011…
…0111101101000010100
3111200111000122001212201
42011110012331220110
54321130112012322
6145432050454244
713225160461300
oct2052406755024
9450430561781
10143145032212
1155786703416
12238aab94384
13106633261c0
146cdd1c8d00
153acbdb2d27
hex21541bda14

143145032212 has 36 divisors (see below), whose sum is σ = 313817960820. Its totient is φ = 56628802944.

The previous prime is 143145032167. The next prime is 143145032227. The reversal of 143145032212 is 212230541341.

It can be written as a sum of positive squares in 2 ways, for example, as 9689252356 + 133455779856 = 98434^2 + 365316^2 .

It is a super-2 number, since 2×1431450322122 (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 28087137 + ... + 28092232.

Almost surely, 2143145032212 is an apocalyptic number.

It is an amenable number.

143145032212 is an abundant number, since it is smaller than the sum of its proper divisors (170672928608).

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

143145032212 is a wasteful number, since it uses less digits than its factorization.

143145032212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56179400 (or 56179391 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 28.

Adding to 143145032212 its reverse (212230541341), we get a palindrome (355375573553).

The spelling of 143145032212 in words is "one hundred forty-three billion, one hundred forty-five million, thirty-two thousand, two hundred twelve".

Divisors: 1 2 4 7 13 14 26 28 49 52 91 98 182 196 364 637 1274 2548 56179369 112358738 224717476 393255583 730331797 786511166 1460663594 1573022332 2752789081 2921327188 5112322579 5505578162 10224645158 11011156324 20449290316 35786258053 71572516106 143145032212