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245924949 = 381974983
BaseRepresentation
bin11101010100010…
…00010001010101
3122010202021121110
432222020101111
51000424044244
640223005233
76044220234
oct1652102125
9563667543
10245924949
11116900066
126a439819
133bc4692a
1424938b1b
15168cb9b9
hexea88455

245924949 has 4 divisors (see below), whose sum is σ = 327899936. Its totient is φ = 163949964.

The previous prime is 245924909. The next prime is 245925007. The reversal of 245924949 is 949429542.

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.

It is not a de Polignac number, because 245924949 - 213 = 245916757 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 245924898 and 245924907.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245924909) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40987489 + ... + 40987494.

It is an arithmetic number, because the mean of its divisors is an integer number (81974984).

Almost surely, 2245924949 is an apocalyptic number.

It is an amenable number.

245924949 is a deficient number, since it is larger than the sum of its proper divisors (81974987).

245924949 is an equidigital number, since it uses as much as digits as its factorization.

245924949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81974986.

The product of its digits is 933120, while the sum is 48.

The square root of 245924949 is about 15681.9944203536. The cubic root of 245924949 is about 626.5189287251.

The spelling of 245924949 in words is "two hundred forty-five million, nine hundred twenty-four thousand, nine hundred forty-nine".

Divisors: 1 3 81974983 245924949