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202342661 = 2347187181
BaseRepresentation
bin11000000111110…
…00000100000101
3112002202001221122
430003320010011
5403244431121
632024523325
75004612203
oct1403700405
9462661848
10202342661
11a4243044
1257920545
1332bc76b1
141cc32073
1512b6d5ab
hexc0f8105

202342661 has 8 divisors (see below), whose sum is σ = 215633664. Its totient is φ = 189426160.

The previous prime is 202342633. The next prime is 202342669. The reversal of 202342661 is 166243202.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 202342661 - 26 = 202342597 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 202342661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202342669) 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, 92510 + ... + 94671.

It is an arithmetic number, because the mean of its divisors is an integer number (26954208).

Almost surely, 2202342661 is an apocalyptic number.

It is an amenable number.

202342661 is a deficient number, since it is larger than the sum of its proper divisors (13291003).

202342661 is a wasteful number, since it uses less digits than its factorization.

202342661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187251.

The product of its (nonzero) digits is 3456, while the sum is 26.

The square root of 202342661 is about 14224.7200675444. The cubic root of 202342661 is about 587.0780175434.

Adding to 202342661 its reverse (166243202), we get a palindrome (368585863).

The spelling of 202342661 in words is "two hundred two million, three hundred forty-two thousand, six hundred sixty-one".

Divisors: 1 23 47 1081 187181 4305163 8797507 202342661