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7125201 = 323721397
BaseRepresentation
bin11011001011100011010001
3111101222221100
4123023203101
53311001301
6412415013
7114364116
oct33134321
914358840
107125201
1140272a6
122477469
1316261c5
14d3690d
1595b286
hex6cb8d1

7125201 has 12 divisors (see below), whose sum is σ = 10570612. Its totient is φ = 4621536.

The previous prime is 7125199. The next prime is 7125203. The reversal of 7125201 is 1025217.

7125201 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (7125199) and next prime (7125203).

It can be written as a sum of positive squares in 2 ways, for example, as 6765201 + 360000 = 2601^2 + 600^2 .

It is not a de Polignac number, because 7125201 - 21 = 7125199 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7125203) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10366 + ... + 11031.

Almost surely, 27125201 is an apocalyptic number.

It is an amenable number.

7125201 is a deficient number, since it is larger than the sum of its proper divisors (3445411).

7125201 is a wasteful number, since it uses less digits than its factorization.

7125201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21440 (or 21437 counting only the distinct ones).

The product of its (nonzero) digits is 140, while the sum is 18.

The square root of 7125201 is about 2669.3072134919. The cubic root of 7125201 is about 192.4268660175.

The spelling of 7125201 in words is "seven million, one hundred twenty-five thousand, two hundred one".

Divisors: 1 3 9 37 111 333 21397 64191 192573 791689 2375067 7125201