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344400115 = 5431601861
BaseRepresentation
bin10100100001110…
…010000011110011
3220000001100010211
4110201302003303
51201131300430
654101404551
711351231653
oct2441620363
9800040124
10344400115
1116744a9a4
1297409757
1356475367
1433a50363
152037e72a
hex148720f3

344400115 has 8 divisors (see below), whose sum is σ = 422891568. Its totient is φ = 269112480.

The previous prime is 344400113. The next prime is 344400131. The reversal of 344400115 is 511004443.

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

It is not a de Polignac number, because 344400115 - 21 = 344400113 is a prime.

It is a super-2 number, since 2×3444001152 = 237222878424026450, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (344400113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 800716 + ... + 801145.

It is an arithmetic number, because the mean of its divisors is an integer number (52861446).

Almost surely, 2344400115 is an apocalyptic number.

344400115 is a deficient number, since it is larger than the sum of its proper divisors (78491453).

344400115 is a wasteful number, since it uses less digits than its factorization.

344400115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1601909.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 344400115 is about 18558.0202338504. The cubic root of 344400115 is about 700.9511661454.

Adding to 344400115 its reverse (511004443), we get a palindrome (855404558).

The spelling of 344400115 in words is "three hundred forty-four million, four hundred thousand, one hundred fifteen".

Divisors: 1 5 43 215 1601861 8009305 68880023 344400115