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1000344049 = 7219138571
BaseRepresentation
bin111011101000000…
…000100111110001
32120201022202001121
4323220000213301
54022042002144
6243132502241
733534532645
oct7350004761
92521282047
101000344049
11473739321
1223b01a981
1312c32a973
1496bdac25
155cc4d384
hex3ba009f1

1000344049 has 4 divisors (see below), whose sum is σ = 1000489840. Its totient is φ = 1000198260.

The previous prime is 1000344041. The next prime is 1000344071. The reversal of 1000344049 is 9404430001.

It is a happy number.

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, and also an emirpimes, since its reverse is a distinct semiprime: 9404430001 = 36432581507.

It is a cyclic number.

It is not a de Polignac number, because 1000344049 - 23 = 1000344041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1000344041) 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, 62067 + ... + 76504.

It is an arithmetic number, because the mean of its divisors is an integer number (250122460).

Almost surely, 21000344049 is an apocalyptic number.

It is an amenable number.

1000344049 is a deficient number, since it is larger than the sum of its proper divisors (145791).

1000344049 is an equidigital number, since it uses as much as digits as its factorization.

1000344049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145790.

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 1000344049 is about 31628.2160262004. The cubic root of 1000344049 is about 1000.1146698503.

The spelling of 1000344049 in words is "one billion, three hundred forty-four thousand, forty-nine".

Divisors: 1 7219 138571 1000344049