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345132866 = 21313796893
BaseRepresentation
bin10100100100100…
…100111101000010
3220001102120021202
4110210210331002
51201323222431
654125221202
711360403161
oct2444447502
9801376252
10345132866
11167900481
1297701802
1356670a40
1433ba13d8
15204768cb
hex14924f42

345132866 has 16 divisors (see below), whose sum is σ = 561597624. Its totient is φ = 158127744.

The previous prime is 345132847. The next prime is 345132869. The reversal of 345132866 is 668231543.

It can be written as a sum of positive squares in 4 ways, for example, as 226954225 + 118178641 = 15065^2 + 10871^2 .

It is a super-3 number, since 3×3451328663 (a number of 27 digits) contains 333 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (345132869) 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, 44885 + ... + 52008.

Almost surely, 2345132866 is an apocalyptic number.

345132866 is a deficient number, since it is larger than the sum of its proper divisors (216464758).

345132866 is a wasteful number, since it uses less digits than its factorization.

345132866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97045.

The product of its digits is 103680, while the sum is 38.

The square root of 345132866 is about 18577.7519092058. The cubic root of 345132866 is about 701.4479321758.

The spelling of 345132866 in words is "three hundred forty-five million, one hundred thirty-two thousand, eight hundred sixty-six".

Divisors: 1 2 13 26 137 274 1781 3562 96893 193786 1259609 2519218 13274341 26548682 172566433 345132866