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506380897 = 1189517243
BaseRepresentation
bin11110001011101…
…100001001100001
31022021211211000001
4132023230021201
52014113142042
6122125300001
715356111101
oct3613541141
91267754001
10506380897
1123a925510
12121704601
1380baa589
144b377201
152e6c8bb7
hex1e2ec261

506380897 has 8 divisors (see below), whose sum is σ = 558623520. Its totient is φ = 455172960.

The previous prime is 506380879. The next prime is 506380909. The reversal of 506380897 is 798083605.

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

It is not a de Polignac number, because 506380897 - 211 = 506378849 is a prime.

It is a super-2 number, since 2×5063808972 = 512843225693049218, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (506380807) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 257643 + ... + 259600.

It is an arithmetic number, because the mean of its divisors is an integer number (69827940).

Almost surely, 2506380897 is an apocalyptic number.

It is an amenable number.

506380897 is a deficient number, since it is larger than the sum of its proper divisors (52242623).

506380897 is a wasteful number, since it uses less digits than its factorization.

506380897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 517343.

The product of its (nonzero) digits is 362880, while the sum is 46.

The square root of 506380897 is about 22502.9086342188. The cubic root of 506380897 is about 797.0626117422.

The spelling of 506380897 in words is "five hundred six million, three hundred eighty thousand, eight hundred ninety-seven".

Divisors: 1 11 89 979 517243 5689673 46034627 506380897