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47143475 = 526912729
BaseRepresentation
bin1011001111010…
…1101000110011
310021201010200122
42303311220303
544032042400
64402240455
71111466351
oct263655063
9107633618
1047143475
112467a655
121395612b
1399c8162
1463927d1
154213685
hex2cf5a33

47143475 has 12 divisors (see below), whose sum is σ = 58563960. Its totient is φ = 37646400.

The previous prime is 47143471. The next prime is 47143477. The reversal of 47143475 is 57434174.

It is not a de Polignac number, because 47143475 - 22 = 47143471 is a prime.

It is not an unprimeable number, because it can be changed into a prime (47143471) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15911 + ... + 18639.

It is an arithmetic number, because the mean of its divisors is an integer number (4880330).

Almost surely, 247143475 is an apocalyptic number.

47143475 is a deficient number, since it is larger than the sum of its proper divisors (11420485).

47143475 is a wasteful number, since it uses less digits than its factorization.

47143475 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3430 (or 3425 counting only the distinct ones).

The product of its digits is 47040, while the sum is 35.

The square root of 47143475 is about 6866.1106166446. The cubic root of 47143475 is about 361.2494522327.

The spelling of 47143475 in words is "forty-seven million, one hundred forty-three thousand, four hundred seventy-five".

Divisors: 1 5 25 691 2729 3455 13645 17275 68225 1885739 9428695 47143475