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50212199965 = 510992132477
BaseRepresentation
bin101110110000111000…
…010101111000011101
311210121101010001020211
4232300320111320131
51310313310344330
635022301412421
73425206441354
oct566070257035
9153541101224
1050212199965
111a327529024
129893b6a111
134972a09035
1426049aa99b
15148d30dd2a
hexbb0e15e1d

50212199965 has 8 divisors (see below), whose sum is σ = 60807435480. Its totient is φ = 39801229632.

The previous prime is 50212199963. The next prime is 50212199969. The reversal of 50212199965 is 56999121205.

It can be written as a sum of positive squares in 4 ways, for example, as 24057871236 + 26154328729 = 155106^2 + 161723^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 50212199965 - 21 = 50212199963 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50212199963) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46065694 + ... + 46066783.

It is an arithmetic number, because the mean of its divisors is an integer number (7600929435).

Almost surely, 250212199965 is an apocalyptic number.

It is an amenable number.

50212199965 is a deficient number, since it is larger than the sum of its proper divisors (10595235515).

50212199965 is a wasteful number, since it uses less digits than its factorization.

50212199965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92132591.

The product of its (nonzero) digits is 437400, while the sum is 49.

The spelling of 50212199965 in words is "fifty billion, two hundred twelve million, one hundred ninety-nine thousand, nine hundred sixty-five".

Divisors: 1 5 109 545 92132477 460662385 10042439993 50212199965