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33485473 = 72683377
BaseRepresentation
bin111111110111…
…1001010100001
32100000020102201
41333233022201
532033013343
63153413201
7554423200
oct177571241
970006381
1033485473
11179a114a
12b26a201
136c255b8
144639237
152e1694d
hex1fef2a1

33485473 has 6 divisors (see below), whose sum is σ = 38952546. Its totient is φ = 28701792.

The previous prime is 33485443. The next prime is 33485477. The reversal of 33485473 is 37458433.

It can be written as a sum of positive squares in only one way, i.e., 25684624 + 7800849 = 5068^2 + 2793^2 .

It is a de Polignac number, because none of the positive numbers 2k-33485473 is a prime.

It is a super-2 number, since 2×334854732 = 2242553804067458, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (33485477) 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, 341640 + ... + 341737.

It is an arithmetic number, because the mean of its divisors is an integer number (6492091).

Almost surely, 233485473 is an apocalyptic number.

It is an amenable number.

33485473 is a deficient number, since it is larger than the sum of its proper divisors (5467073).

33485473 is an equidigital number, since it uses as much as digits as its factorization.

33485473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 683391 (or 683384 counting only the distinct ones).

The product of its digits is 120960, while the sum is 37.

The square root of 33485473 is about 5786.6633736550. The cubic root of 33485473 is about 322.3186826062.

The spelling of 33485473 in words is "thirty-three million, four hundred eighty-five thousand, four hundred seventy-three".

Divisors: 1 7 49 683377 4783639 33485473