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244242031 = 1129765649
BaseRepresentation
bin11101000111011…
…01011001101111
3122000120210002011
432203231121233
51000011221111
640122542051
76024010615
oct1643553157
9560523064
10244242031
11115960720
1269967927
133b7a7917
142461b6b5
1516698021
hexe8ed66f

244242031 has 8 divisors (see below), whose sum is σ = 275634000. Its totient is φ = 214381440.

The previous prime is 244241999. The next prime is 244242067. The reversal of 244242031 is 130242442.

It is a happy number.

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 244242031 - 25 = 244241999 is a prime.

It is a super-2 number, since 2×2442420312 = 119308339414009922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 244241993 and 244242011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (244242071) 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, 382506 + ... + 383143.

It is an arithmetic number, because the mean of its divisors is an integer number (34454250).

Almost surely, 2244242031 is an apocalyptic number.

244242031 is a deficient number, since it is larger than the sum of its proper divisors (31391969).

244242031 is a wasteful number, since it uses less digits than its factorization.

244242031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 765689.

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 244242031 is about 15628.2446551108. The cubic root of 244242031 is about 625.0865211420.

Adding to 244242031 its reverse (130242442), we get a palindrome (374484473).

The spelling of 244242031 in words is "two hundred forty-four million, two hundred forty-two thousand, thirty-one".

Divisors: 1 11 29 319 765649 8422139 22203821 244242031