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68612202 = 23229131441
BaseRepresentation
bin1000001011011…
…11000001101010
311210002212020200
410011233001222
5120031042302
610450333030
71462123401
oct405570152
9153085220
1068612202
11358033aa
121ab8a176
13112a3c49
149180638
15605481c
hex416f06a

68612202 has 24 divisors (see below), whose sum is σ = 153787140. Its totient is φ = 22081920.

The previous prime is 68612191. The next prime is 68612227. The reversal of 68612202 is 20221686.

It can be written as a sum of positive squares in 2 ways, for example, as 66732561 + 1879641 = 8169^2 + 1371^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 65199 + ... + 66242.

Almost surely, 268612202 is an apocalyptic number.

68612202 is an abundant number, since it is smaller than the sum of its proper divisors (85174938).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68612202 is a wasteful number, since it uses less digits than its factorization.

68612202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131478 (or 131475 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 68612202 is about 8283.2482758879. The cubic root of 68612202 is about 409.3867532472.

Adding to 68612202 its reverse (20221686), we get a palindrome (88833888).

The spelling of 68612202 in words is "sixty-eight million, six hundred twelve thousand, two hundred two".

Divisors: 1 2 3 6 9 18 29 58 87 174 261 522 131441 262882 394323 788646 1182969 2365938 3811789 7623578 11435367 22870734 34306101 68612202