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33401201 = 131254971
BaseRepresentation
bin111111101101…
…0100101110001
32022211221211112
41333122211301
532022314301
63151523105
7553622411
oct177324561
968757745
1033401201
11179438a9
12b229495
136bc6132
144616641
152deb9bb
hex1fda971

33401201 has 4 divisors (see below), whose sum is σ = 33656304. Its totient is φ = 33146100.

The previous prime is 33401191. The next prime is 33401219. The reversal of 33401201 is 10210433.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 10210433 = 26937957.

It is a cyclic number.

It is not a de Polignac number, because 33401201 - 210 = 33400177 is a prime.

It is a super-2 number, since 2×334012012 = 2231280456484802, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (33401261) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 127355 + ... + 127616.

It is an arithmetic number, because the mean of its divisors is an integer number (8414076).

Almost surely, 233401201 is an apocalyptic number.

It is an amenable number.

33401201 is a deficient number, since it is larger than the sum of its proper divisors (255103).

33401201 is a wasteful number, since it uses less digits than its factorization.

33401201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255102.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 33401201 is about 5779.3772155830. The cubic root of 33401201 is about 322.0480651730.

Adding to 33401201 its reverse (10210433), we get a palindrome (43611634).

The spelling of 33401201 in words is "thirty-three million, four hundred one thousand, two hundred one".

Divisors: 1 131 254971 33401201