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340464269 = 3712177561
BaseRepresentation
bin10100010010110…
…001001010001101
3212201122101011202
4110102301022031
51144124324034
653441155245
711302620125
oct2422611215
9781571152
10340464269
11165201932
129602bb25
13556c7a62
1433307c85
151ed5347e
hex144b128d

340464269 has 8 divisors (see below), whose sum is σ = 349999608. Its totient is φ = 330946560.

The previous prime is 340464259. The next prime is 340464307. The reversal of 340464269 is 962464043.

It can be written as a sum of positive squares in 4 ways, for example, as 51294244 + 289170025 = 7162^2 + 17005^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-340464269 is a prime.

It is a super-2 number, since 2×3404642692 = 231831836931408722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (340464259) 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, 41249 + ... + 48809.

It is an arithmetic number, because the mean of its divisors is an integer number (43749951).

Almost surely, 2340464269 is an apocalyptic number.

It is an amenable number.

340464269 is a deficient number, since it is larger than the sum of its proper divisors (9535339).

340464269 is a wasteful number, since it uses less digits than its factorization.

340464269 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8815.

The product of its (nonzero) digits is 124416, while the sum is 38.

The square root of 340464269 is about 18451.6738807080. The cubic root of 340464269 is about 698.2707445509.

The spelling of 340464269 in words is "three hundred forty million, four hundred sixty-four thousand, two hundred sixty-nine".

Divisors: 1 37 1217 7561 45029 279757 9201737 340464269