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47456401 = 172164209
BaseRepresentation
bin1011010100001…
…0000010010001
310022022000221111
42311002002101
544122101101
64413053321
71114241566
oct265020221
9108260844
1047456401
1124873773
1213a87241
139aa7715
14643486d
154276251
hex2d42091

47456401 has 6 divisors (see below), whose sum is σ = 50412470. Its totient is φ = 44664576.

The previous prime is 47456399. The next prime is 47456411. The reversal of 47456401 is 10465474.

It can be written as a sum of positive squares in 3 ways, for example, as 10246401 + 37210000 = 3201^2 + 6100^2 .

It is not a de Polignac number, because 47456401 - 21 = 47456399 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47456411) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 81816 + ... + 82393.

Almost surely, 247456401 is an apocalyptic number.

It is an amenable number.

47456401 is a deficient number, since it is larger than the sum of its proper divisors (2956069).

47456401 is a wasteful number, since it uses less digits than its factorization.

47456401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164243 (or 164226 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 31.

The square root of 47456401 is about 6888.8606459995. The cubic root of 47456401 is about 362.0469832083.

The spelling of 47456401 in words is "forty-seven million, four hundred fifty-six thousand, four hundred one".

Divisors: 1 17 289 164209 2791553 47456401