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245683897 = 3143184309
BaseRepresentation
bin11101010010011…
…01011010111001
3122010022000221121
432221031122321
51000343341042
640213505241
76042164404
oct1651153271
9563260847
10245683897
11116755a48
126a342221
133bb90cb4
14248b4d3b
1516880367
hexea4d6b9

245683897 has 8 divisors (see below), whose sum is σ = 259508480. Its totient is φ = 232228080.

The previous prime is 245683891. The next prime is 245683937. The reversal of 245683897 is 798386542.

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 245683897 - 215 = 245651129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (245683891) 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, 90822 + ... + 93487.

It is an arithmetic number, because the mean of its divisors is an integer number (32438560).

Almost surely, 2245683897 is an apocalyptic number.

It is an amenable number.

245683897 is a deficient number, since it is larger than the sum of its proper divisors (13824583).

245683897 is a wasteful number, since it uses less digits than its factorization.

245683897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184383.

The product of its digits is 2903040, while the sum is 52.

The square root of 245683897 is about 15674.3069065270. The cubic root of 245683897 is about 626.3141602757.

The spelling of 245683897 in words is "two hundred forty-five million, six hundred eighty-three thousand, eight hundred ninety-seven".

Divisors: 1 31 43 1333 184309 5713579 7925287 245683897