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190688602 = 21337198221
BaseRepresentation
bin10110101110110…
…10110101011010
3111021210222120211
423113122311122
5342304013402
630531041334
74503553306
oct1327326532
9437728524
10190688602
1198703195
1253a4024a
1330676cc0
141b47ad06
1511b1a4d7
hexb5dad5a

190688602 has 16 divisors (see below), whose sum is σ = 316362312. Its totient is φ = 85631040.

The previous prime is 190688557. The next prime is 190688611. The reversal of 190688602 is 206886091.

It can be written as a sum of positive squares in 4 ways, for example, as 190688481 + 121 = 13809^2 + 11^2 .

It is an unprimeable number.

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, 98149 + ... + 100072.

Almost surely, 2190688602 is an apocalyptic number.

190688602 is a deficient number, since it is larger than the sum of its proper divisors (125673710).

190688602 is a wasteful number, since it uses less digits than its factorization.

190688602 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198273.

The product of its (nonzero) digits is 41472, while the sum is 40.

The square root of 190688602 is about 13809.0043812000. The cubic root of 190688602 is about 575.5833796890.

The spelling of 190688602 in words is "one hundred ninety million, six hundred eighty-eight thousand, six hundred two".

Divisors: 1 2 13 26 37 74 481 962 198221 396442 2576873 5153746 7334177 14668354 95344301 190688602