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47470245 = 352925371
BaseRepresentation
bin1011010100010…
…1011010100101
310022022201221020
42311011122211
544123021440
64413241353
71114330134
oct265053245
9108281836
1047470245
1124883109
1213a93259
139ab0b04
14643991b
15427a3d0
hex2d456a5

47470245 has 48 divisors (see below), whose sum is σ = 81274752. Its totient is φ = 23645440.

The previous prime is 47470219. The next prime is 47470249. The reversal of 47470245 is 54207474.

47470245 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 47470245 - 213 = 47462053 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47470249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 668560 + ... + 668630.

It is an arithmetic number, because the mean of its divisors is an integer number (1693224).

Almost surely, 247470245 is an apocalyptic number.

It is an amenable number.

47470245 is a deficient number, since it is larger than the sum of its proper divisors (33804507).

47470245 is a wasteful number, since it uses less digits than its factorization.

47470245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190 (or 161 counting only the distinct ones).

The product of its (nonzero) digits is 31360, while the sum is 33.

The square root of 47470245 is about 6889.8653833003. The cubic root of 47470245 is about 362.0821852816.

The spelling of 47470245 in words is "forty-seven million, four hundred seventy thousand, two hundred forty-five".

Divisors: 1 3 5 15 29 53 71 87 145 159 213 265 355 435 795 841 1065 1537 2059 2523 3763 4205 4611 6177 7685 10295 11289 12615 18815 23055 30885 44573 56445 59711 109127 133719 179133 222865 298555 327381 545635 668595 895665 1636905 3164683 9494049 15823415 47470245