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244412540 = 22512220627
BaseRepresentation
bin11101001000101…
…11000001111100
3122000220102222022
432210113001330
51000032200130
640130335312
76025321001
oct1644270174
9560812868
10244412540
11115a67839
1269a2a538
133b837408
14246638a8
15166cd7e5
hexe91707c

244412540 has 12 divisors (see below), whose sum is σ = 513266376. Its totient is φ = 97765008.

The previous prime is 244412537. The next prime is 244412557. The reversal of 244412540 is 45214442.

244412540 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6110294 + ... + 6110333.

It is an arithmetic number, because the mean of its divisors is an integer number (42772198).

Almost surely, 2244412540 is an apocalyptic number.

244412540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

244412540 is an abundant number, since it is smaller than the sum of its proper divisors (268853836).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

244412540 is a wasteful number, since it uses less digits than its factorization.

244412540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12220636 (or 12220634 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 26.

The square root of 244412540 is about 15633.6988585555. The cubic root of 244412540 is about 625.2319480429.

Adding to 244412540 its reverse (45214442), we get a palindrome (289626982).

The spelling of 244412540 in words is "two hundred forty-four million, four hundred twelve thousand, five hundred forty".

Divisors: 1 2 4 5 10 20 12220627 24441254 48882508 61103135 122206270 244412540