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47412985 = 557116607
BaseRepresentation
bin1011010011011…
…1011011111001
310022012211101111
42310313123321
544114203420
64412120321
71114001164
oct264673371
9108184344
1047412985
1124844094
1213a660a1
139a90a29
146422adb
15426845a
hex2d376f9

47412985 has 8 divisors (see below), whose sum is σ = 56998656. Its totient is φ = 37861680.

The previous prime is 47412979. The next prime is 47412991. The reversal of 47412985 is 58921474.

It is an interprime number because it is at equal distance from previous prime (47412979) and next prime (47412991).

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

It is not a de Polignac number, because 47412985 - 213 = 47404793 is a prime.

It is a super-2 number, since 2×474129852 = 4495982293220450, which contains 22 as substring.

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

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5449 + ... + 11158.

It is an arithmetic number, because the mean of its divisors is an integer number (7124832).

Almost surely, 247412985 is an apocalyptic number.

It is an amenable number.

47412985 is a deficient number, since it is larger than the sum of its proper divisors (9585671).

47412985 is a wasteful number, since it uses less digits than its factorization.

47412985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17183.

The product of its digits is 80640, while the sum is 40.

The square root of 47412985 is about 6885.7087507387. The cubic root of 47412985 is about 361.9365419936.

The spelling of 47412985 in words is "forty-seven million, four hundred twelve thousand, nine hundred eighty-five".

Divisors: 1 5 571 2855 16607 83035 9482597 47412985