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1914829469 = 7273547067
BaseRepresentation
bin111001000100001…
…1111101010011101
311221110002102012222
41302020133222131
512410144020334
6514001235125
765310532130
oct16210375235
94843072188
101914829469
118a29647a3
12455332aa5
132469266b7
14142448217
15b318bd2e
hex7221fa9d

1914829469 has 4 divisors (see below), whose sum is σ = 2188376544. Its totient is φ = 1641282396.

The previous prime is 1914829463. The next prime is 1914829507. The reversal of 1914829469 is 9649284191.

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: 9649284191 = 84221114571.

It is a cyclic number.

It is not a de Polignac number, because 1914829469 - 216 = 1914763933 is a prime.

It is a super-2 number, since 2×19148294692 = 7333143790701643922, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1914829469.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1914829463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 136773527 + ... + 136773540.

It is an arithmetic number, because the mean of its divisors is an integer number (547094136).

Almost surely, 21914829469 is an apocalyptic number.

It is an amenable number.

1914829469 is a deficient number, since it is larger than the sum of its proper divisors (273547075).

1914829469 is an equidigital number, since it uses as much as digits as its factorization.

1914829469 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 273547074.

The product of its digits is 1119744, while the sum is 53.

The square root of 1914829469 is about 43758.7644821012. The cubic root of 1914829469 is about 1241.7763020009.

The spelling of 1914829469 in words is "one billion, nine hundred fourteen million, eight hundred twenty-nine thousand, four hundred sixty-nine".

Divisors: 1 7 273547067 1914829469