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242010740 = 22512100537
BaseRepresentation
bin11100110110011…
…00101001110100
3121212101102022202
432123030221310
5443423320430
640003044032
75666025446
oct1633145164
9555342282
10242010740
11114677284
1269070618
133b1a612a
14241da496
15163a6d45
hexe6cca74

242010740 has 12 divisors (see below), whose sum is σ = 508222596. Its totient is φ = 96804288.

The previous prime is 242010731. The next prime is 242010763. The reversal of 242010740 is 47010242.

242010740 = T5673 + T5674 + ... + T5687.

It can be written as a sum of positive squares in 2 ways, for example, as 97337956 + 144672784 = 9866^2 + 12028^2 .

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 12100537 = 242010740 / (2 + 4 + 2 + 0 + 1 + 0 + 7 + 4 + 0).

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, 6050249 + ... + 6050288.

It is an arithmetic number, because the mean of its divisors is an integer number (42351883).

Almost surely, 2242010740 is an apocalyptic number.

242010740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

242010740 is an abundant number, since it is smaller than the sum of its proper divisors (266211856).

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

242010740 is a wasteful number, since it uses less digits than its factorization.

242010740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12100546 (or 12100544 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 20.

The square root of 242010740 is about 15556.6943789482. The cubic root of 242010740 is about 623.1771870664.

Adding to 242010740 its reverse (47010242), we get a palindrome (289020982).

The spelling of 242010740 in words is "two hundred forty-two million, ten thousand, seven hundred forty".

Divisors: 1 2 4 5 10 20 12100537 24201074 48402148 60502685 121005370 242010740