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242782812 = 22334154829
BaseRepresentation
bin11100111100010…
…01001001011100
3121220211122102000
432132021021130
5444123022222
640031402300
76005422416
oct1636111134
9556748360
10242782812
11115054358
1269383390
133b3b668c
142435b9b6
15164aa9ac
hexe78925c

242782812 has 48 divisors (see below), whose sum is σ = 644800800. Its totient is φ = 78952320.

The previous prime is 242782747. The next prime is 242782819. The reversal of 242782812 is 218287242.

242782812 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242782819) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22987 + ... + 31842.

It is an arithmetic number, because the mean of its divisors is an integer number (13433350).

Almost surely, 2242782812 is an apocalyptic number.

It is an amenable number.

242782812 is an abundant number, since it is smaller than the sum of its proper divisors (402017988).

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

242782812 is a wasteful number, since it uses less digits than its factorization.

242782812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54883 (or 54875 counting only the distinct ones).

The product of its digits is 28672, while the sum is 36.

The square root of 242782812 is about 15581.4894024929. The cubic root of 242782812 is about 623.8391782300.

The spelling of 242782812 in words is "two hundred forty-two million, seven hundred eighty-two thousand, eight hundred twelve".

Divisors: 1 2 3 4 6 9 12 18 27 36 41 54 82 108 123 164 246 369 492 738 1107 1476 2214 4428 54829 109658 164487 219316 328974 493461 657948 986922 1480383 1973844 2247989 2960766 4495978 5921532 6743967 8991956 13487934 20231901 26975868 40463802 60695703 80927604 121391406 242782812