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242922807 = 342999047
BaseRepresentation
bin11100111101010…
…11010100110111
3121221002202110000
432132223110313
5444142012212
640034402343
76006544521
oct1636532467
9557082400
10242922807
1111513a556
12694303b3
133b43530a
1424396a11
15164d71dc
hexe7ab537

242922807 has 10 divisors (see below), whose sum is σ = 362884808. Its totient is φ = 161948484.

The previous prime is 242922787. The next prime is 242922811. The reversal of 242922807 is 708229242.

It is a happy number.

242922807 is a `hidden beast` number, since 2 + 429 + 228 + 0 + 7 = 666.

It is not a de Polignac number, because 242922807 - 216 = 242857271 is a prime.

It is a super-2 number, since 2×2429228072 = 118022980321518498, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242922817) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 1499443 + ... + 1499604.

Almost surely, 2242922807 is an apocalyptic number.

242922807 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

242922807 is a deficient number, since it is larger than the sum of its proper divisors (119962001).

242922807 is an equidigital number, since it uses as much as digits as its factorization.

242922807 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2999059 (or 2999050 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The square root of 242922807 is about 15585.9811048262. The cubic root of 242922807 is about 623.9590625880.

The spelling of 242922807 in words is "two hundred forty-two million, nine hundred twenty-two thousand, eight hundred seven".

Divisors: 1 3 9 27 81 2999047 8997141 26991423 80974269 242922807