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47043045 = 335767743
BaseRepresentation
bin1011001101110…
…1000111100101
310021112000221000
42303131013211
544020334140
64400143513
71110600510
oct263350745
9107460830
1047043045
1124611155
1213907b99
13999152a
146367d77
1541e3a30
hex2cdd1e5

47043045 has 64 divisors (see below), whose sum is σ = 97136640. Its totient is φ = 21155904.

The previous prime is 47043043. The next prime is 47043047. The reversal of 47043045 is 54034074.

It is an interprime number because it is at equal distance from previous prime (47043043) and next prime (47043047).

It is not a de Polignac number, because 47043045 - 21 = 47043043 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47043043) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 62944 + ... + 63686.

It is an arithmetic number, because the mean of its divisors is an integer number (1517760).

Almost surely, 247043045 is an apocalyptic number.

47043045 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

47043045 is an abundant number, since it is smaller than the sum of its proper divisors (50093595).

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

47043045 is a wasteful number, since it uses less digits than its factorization.

47043045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 831 (or 825 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 27.

The square root of 47043045 is about 6858.7932612086. The cubic root of 47043045 is about 360.9927459709.

The spelling of 47043045 in words is "forty-seven million, forty-three thousand, forty-five".

Divisors: 1 3 5 7 9 15 21 27 35 45 63 67 105 135 189 201 315 335 469 603 743 945 1005 1407 1809 2229 2345 3015 3715 4221 5201 6687 7035 9045 11145 12663 15603 20061 21105 26005 33435 46809 49781 63315 78015 100305 140427 149343 234045 248905 348467 448029 702135 746715 1045401 1344087 1742335 2240145 3136203 5227005 6720435 9408609 15681015 47043045