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47064540 = 2235784409
BaseRepresentation
bin1011001110001…
…0010111011100
310021120010102010
42303202113130
544022031130
64400431220
71111020255
oct263422734
9107503363
1047064540
1124626316
1213918510
13999b253
146371b2c
1541ea0b0
hex2ce25dc

47064540 has 24 divisors (see below), whose sum is σ = 131780880. Its totient is φ = 12550528.

The previous prime is 47064533. The next prime is 47064547. The reversal of 47064540 is 4546074.

It is an interprime number because it is at equal distance from previous prime (47064533) and next prime (47064547).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 47064498 and 47064507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47064547) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 392145 + ... + 392264.

It is an arithmetic number, because the mean of its divisors is an integer number (5490870).

Almost surely, 247064540 is an apocalyptic number.

It is an amenable number.

47064540 is an abundant number, since it is smaller than the sum of its proper divisors (84716340).

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

47064540 is a wasteful number, since it uses less digits than its factorization.

47064540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 784421 (or 784419 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 30.

The square root of 47064540 is about 6860.3600488604. The cubic root of 47064540 is about 361.0477194357.

The spelling of 47064540 in words is "forty-seven million, sixty-four thousand, five hundred forty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 784409 1568818 2353227 3137636 3922045 4706454 7844090 9412908 11766135 15688180 23532270 47064540