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344131933 = 1918112207
BaseRepresentation
bin10100100000110…
…000100101011101
3212222112201021011
4110200300211131
51201044210213
654051535221
711346034045
oct2440604535
9788481234
10344131933
11167287462
12972ba511
13563b0282
14339c0725
152032a03d
hex1483095d

344131933 has 4 divisors (see below), whose sum is σ = 362244160. Its totient is φ = 326019708.

The previous prime is 344131903. The next prime is 344131943. The reversal of 344131933 is 339131443.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a de Polignac number, because none of the positive numbers 2k-344131933 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 344131895 and 344131904.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (344131903) 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, 9056085 + ... + 9056122.

It is an arithmetic number, because the mean of its divisors is an integer number (90561040).

Almost surely, 2344131933 is an apocalyptic number.

It is an amenable number.

344131933 is a deficient number, since it is larger than the sum of its proper divisors (18112227).

344131933 is a wasteful number, since it uses less digits than its factorization.

344131933 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18112226.

The product of its digits is 11664, while the sum is 31.

The square root of 344131933 is about 18550.7933253540. The cubic root of 344131933 is about 700.7691769492.

The spelling of 344131933 in words is "three hundred forty-four million, one hundred thirty-one thousand, nine hundred thirty-three".

Divisors: 1 19 18112207 344131933