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3490247293 = 13269998069
BaseRepresentation
bin1101000000001000…
…1111001001111101
3100000020111221012021
43100002033021331
524122000403133
61334200040141
7152330420041
oct32002171175
910006457167
103490247293
1115311764a5
12814a63051
134381334b0
14251780021
1515663252d
hexd008f27d

3490247293 has 8 divisors (see below), whose sum is σ = 3772704600. Its totient is φ = 3209786688.

The previous prime is 3490247291. The next prime is 3490247317. The reversal of 3490247293 is 3927420943.

It can be written as a sum of positive squares in 4 ways, for example, as 141657604 + 3348589689 = 11902^2 + 57867^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 3490247293 - 21 = 3490247291 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3490247291) 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, 495538 + ... + 502531.

It is an arithmetic number, because the mean of its divisors is an integer number (471588075).

Almost surely, 23490247293 is an apocalyptic number.

It is an amenable number.

3490247293 is a deficient number, since it is larger than the sum of its proper divisors (282457307).

3490247293 is a wasteful number, since it uses less digits than its factorization.

3490247293 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 998351.

The product of its (nonzero) digits is 326592, while the sum is 43.

The square root of 3490247293 is about 59078.3149133419. The cubic root of 3490247293 is about 1516.8829377270.

The spelling of 3490247293 in words is "three billion, four hundred ninety million, two hundred forty-seven thousand, two hundred ninety-three".

Divisors: 1 13 269 3497 998069 12974897 268480561 3490247293