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349144597 = 893922973
BaseRepresentation
bin10100110011111…
…000011000010101
3220022222101100101
4110303320120111
51203340111342
654351214101
711436452164
oct2463703025
9808871311
10349144597
1116a0a055a
1298b17331
1357446a49
14345273db
15209ba3b7
hex14cf8615

349144597 has 4 divisors (see below), whose sum is σ = 353067660. Its totient is φ = 345221536.

The previous prime is 349144567. The next prime is 349144639. The reversal of 349144597 is 795441943.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 795441943 = 4119401023.

It can be written as a sum of positive squares in 2 ways, for example, as 73119601 + 276024996 = 8551^2 + 16614^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-349144597 is a prime.

It is a super-2 number, since 2×3491445972 = 243803899228584818, 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 (349144507) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1961398 + ... + 1961575.

It is an arithmetic number, because the mean of its divisors is an integer number (88266915).

Almost surely, 2349144597 is an apocalyptic number.

It is an amenable number.

349144597 is a deficient number, since it is larger than the sum of its proper divisors (3923063).

349144597 is an equidigital number, since it uses as much as digits as its factorization.

349144597 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3923062.

The product of its digits is 544320, while the sum is 46.

The square root of 349144597 is about 18685.4113414717. The cubic root of 349144597 is about 704.1552829005.

The spelling of 349144597 in words is "three hundred forty-nine million, one hundred forty-four thousand, five hundred ninety-seven".

Divisors: 1 89 3922973 349144597