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47056965 = 3523136397
BaseRepresentation
bin1011001110000…
…0100001000101
310021112202000120
42303200201011
544021310330
64400332153
71110656214
oct263404105
9107482016
1047056965
112462065a
1213914059
139997977
14636d07b
1541e7c10
hex2ce0845

47056965 has 16 divisors (see below), whose sum is σ = 78565248. Its totient is φ = 24005696.

The previous prime is 47056963. The next prime is 47056967. The reversal of 47056965 is 56965074.

It is an interprime number because it is at equal distance from previous prime (47056963) and next prime (47056967).

It is a cyclic number.

It is not a de Polignac number, because 47056965 - 21 = 47056963 is a prime.

It is a super-2 number, since 2×470569652 = 4428715910022450, which contains 22 as substring.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47056963) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 67854 + ... + 68543.

It is an arithmetic number, because the mean of its divisors is an integer number (4910328).

Almost surely, 247056965 is an apocalyptic number.

It is an amenable number.

47056965 is a deficient number, since it is larger than the sum of its proper divisors (31508283).

47056965 is a wasteful number, since it uses less digits than its factorization.

47056965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136428.

The product of its (nonzero) digits is 226800, while the sum is 42.

The square root of 47056965 is about 6859.8079419179. The cubic root of 47056965 is about 361.0283482827.

The spelling of 47056965 in words is "forty-seven million, fifty-six thousand, nine hundred sixty-five".

Divisors: 1 3 5 15 23 69 115 345 136397 409191 681985 2045955 3137131 9411393 15685655 47056965