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214808465 = 5137313589
BaseRepresentation
bin11001100110110…
…11011110010001
3112222012101211002
430303123132101
5414442332330
633152031345
75215561514
oct1463333621
9488171732
10214808465
11100287863
125bb32555
1335670701
1420758d7b
1513cd1e45
hexccdb791

214808465 has 8 divisors (see below), whose sum is σ = 259652520. Its totient is φ = 170591872.

The previous prime is 214808459. The next prime is 214808497. The reversal of 214808465 is 564808412.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 20178064 + 194630401 = 4492^2 + 13951^2 .

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 214808465 - 24 = 214808449 is a prime.

It is a super-2 number, since 2×2148084652 = 92285353271312450, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 156110 + ... + 157479.

It is an arithmetic number, because the mean of its divisors is an integer number (32456565).

Almost surely, 2214808465 is an apocalyptic number.

It is an amenable number.

214808465 is a deficient number, since it is larger than the sum of its proper divisors (44844055).

214808465 is a wasteful number, since it uses less digits than its factorization.

214808465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 313731.

The product of its (nonzero) digits is 61440, while the sum is 38.

The square root of 214808465 is about 14656.3455540595. The cubic root of 214808465 is about 598.8946919256.

The spelling of 214808465 in words is "two hundred fourteen million, eight hundred eight thousand, four hundred sixty-five".

Divisors: 1 5 137 685 313589 1567945 42961693 214808465