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47940461 = 534332089
BaseRepresentation
bin1011011011100…
…0001101101101
310100012121221122
42312320031231
544233043321
64431310325
71121326052
oct266701555
9110177848
1047940461
1125074418
121407b3a5
139c16b4a
14651d029
15431e8ab
hex2db836d

47940461 has 8 divisors (see below), whose sum is σ = 48981240. Its totient is φ = 46904832.

The previous prime is 47940437. The next prime is 47940467. The reversal of 47940461 is 16404974.

It can be written as a sum of positive squares in 4 ways, for example, as 11095561 + 36844900 = 3331^2 + 6070^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 47940461 - 26 = 47940397 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47940467) 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, 21905 + ... + 23993.

It is an arithmetic number, because the mean of its divisors is an integer number (6122655).

Almost surely, 247940461 is an apocalyptic number.

It is an amenable number.

47940461 is a deficient number, since it is larger than the sum of its proper divisors (1040779).

47940461 is a wasteful number, since it uses less digits than its factorization.

47940461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2575.

The product of its (nonzero) digits is 24192, while the sum is 35.

The square root of 47940461 is about 6923.9050397879. The cubic root of 47940461 is about 363.2737931408.

The spelling of 47940461 in words is "forty-seven million, nine hundred forty thousand, four hundred sixty-one".

Divisors: 1 53 433 2089 22949 110717 904537 47940461