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47207147322447 = 327749319798769
BaseRepresentation
bin10101011101111010001010…
…01111110011110001001111
320012010221220021010021101100
422232331011033303301033
522141420214203304242
6244222355235514143
712641414055355560
oct1256750517636117
9205127807107340
1047207147322447
1114050490a80772
12536508a158953
1320457cbbba428
14b92ba3b3c167
1556ce760aa54c
hex2aef453f3c4f

47207147322447 has 12 divisors (see below), whose sum is σ = 77929259072080. Its totient is φ = 26975512755648.

The previous prime is 47207147322389. The next prime is 47207147322449. The reversal of 47207147322447 is 74422374170274.

47207147322447 is a `hidden beast` number, since 4 + 7 + 20 + 7 + 147 + 32 + 2 + 447 = 666.

It is not a de Polignac number, because 47207147322447 - 223 = 47207138933839 is a prime.

It is a super-2 number, since 2×472071473224472 (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 47207147322393 and 47207147322402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47207147322449) 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, 374659899322 + ... + 374659899447.

Almost surely, 247207147322447 is an apocalyptic number.

47207147322447 is a deficient number, since it is larger than the sum of its proper divisors (30722111749633).

47207147322447 is a wasteful number, since it uses less digits than its factorization.

47207147322447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 749319798782 (or 749319798779 counting only the distinct ones).

The product of its (nonzero) digits is 14751744, while the sum is 54.

The spelling of 47207147322447 in words is "forty-seven trillion, two hundred seven billion, one hundred forty-seven million, three hundred twenty-two thousand, four hundred forty-seven".

Divisors: 1 3 7 9 21 63 749319798769 2247959396307 5245238591383 6743878188921 15735715774149 47207147322447