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7168143356 = 2211162912349
BaseRepresentation
bin1101010110100000…
…10010111111111100
3200111120010102002222
412223100102333330
5104140021041411
63143142104512
7342430133063
oct65320227774
920446112088
107168143356
113049259220
12148071b138
138a30b815a
144c00091da
152be47e4db
hex1ab412ffc

7168143356 has 12 divisors (see below), whose sum is σ = 13684637400. Its totient is φ = 3258246960.

The previous prime is 7168143341. The next prime is 7168143373. The reversal of 7168143356 is 6533418617.

It is a Harshad number since it is a multiple of its sum of digits (44), and also a Moran number because the ratio is a prime number: 162912349 = 7168143356 / (7 + 1 + 6 + 8 + 1 + 4 + 3 + 3 + 5 + 6).

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 81456131 + ... + 81456218.

It is an arithmetic number, because the mean of its divisors is an integer number (1140386450).

Almost surely, 27168143356 is an apocalyptic number.

It is an amenable number.

7168143356 is a deficient number, since it is larger than the sum of its proper divisors (6516494044).

7168143356 is a wasteful number, since it uses less digits than its factorization.

7168143356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162912364 (or 162912362 counting only the distinct ones).

The product of its digits is 362880, while the sum is 44.

The square root of 7168143356 is about 84664.8885666307. Note that the first 3 decimals coincide. The cubic root of 7168143356 is about 1928.1266649879.

The spelling of 7168143356 in words is "seven billion, one hundred sixty-eight million, one hundred forty-three thousand, three hundred fifty-six".

Divisors: 1 2 4 11 22 44 162912349 325824698 651649396 1792035839 3584071678 7168143356