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33028147897 = 473172216803
BaseRepresentation
bin11110110000101000…
…011000101010111001
310011020210021202100221
4132300220120222321
51020120201213042
623101203500041
72246316424243
oct366050305271
9104223252327
1033028147897
111300958a3a8
126499087621
1331648535a4
14185469b093
15cd48ccd67
hex7b0a18ab9

33028147897 has 8 divisors (see below), whose sum is σ = 33837296256. Its totient is φ = 32223433872.

The previous prime is 33028147871. The next prime is 33028147969. The reversal of 33028147897 is 79874182033.

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

It is not a de Polignac number, because 33028147897 - 27 = 33028147769 is a prime.

It is a super-2 number, since 2×330281478972 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (33028147847) by changing a digit.

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, 1093503 + ... + 1123300.

It is an arithmetic number, because the mean of its divisors is an integer number (4229662032).

Almost surely, 233028147897 is an apocalyptic number.

It is an amenable number.

33028147897 is a deficient number, since it is larger than the sum of its proper divisors (809148359).

33028147897 is a wasteful number, since it uses less digits than its factorization.

33028147897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2217167.

The product of its (nonzero) digits is 2032128, while the sum is 52.

The spelling of 33028147897 in words is "thirty-three billion, twenty-eight million, one hundred forty-seven thousand, eight hundred ninety-seven".

Divisors: 1 47 317 14899 2216803 104189741 702726551 33028147897