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202054690 = 25171188557
BaseRepresentation
bin11000000101100…
…01110000100010
3112002012102221001
430002301300202
5403211222230
632014422214
75002302505
oct1402616042
9462172831
10202054690
11a4066752
125780196a
1332b265b6
141cb9913c
1512b130ca
hexc0b1c22

202054690 has 16 divisors (see below), whose sum is σ = 385092792. Its totient is φ = 76067584.

The previous prime is 202054681. The next prime is 202054691. The reversal of 202054690 is 96450202.

202054690 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 199120321 + 2934369 = 14111^2 + 1713^2 .

It is a super-2 number, since 2×2020546902 = 81652195501992200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (202054691) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 594109 + ... + 594448.

Almost surely, 2202054690 is an apocalyptic number.

202054690 is a deficient number, since it is larger than the sum of its proper divisors (183038102).

202054690 is a wasteful number, since it uses less digits than its factorization.

202054690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1188581.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 202054690 is about 14214.5942608293. The cubic root of 202054690 is about 586.7993784792.

The spelling of 202054690 in words is "two hundred two million, fifty-four thousand, six hundred ninety".

Divisors: 1 2 5 10 17 34 85 170 1188557 2377114 5942785 11885570 20205469 40410938 101027345 202054690