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242254131 = 3717432367
BaseRepresentation
bin11100111000010…
…00000100110011
3121212211210012020
432130020010303
5444004113011
640012202523
76001061160
oct1634100463
9555753166
10242254131
11114823129
1269169443
133b25cb52
1424261067
1516404006
hexe708133

242254131 has 48 divisors (see below), whose sum is σ = 401255424. Its totient is φ = 126911232.

The previous prime is 242254127. The next prime is 242254141. The reversal of 242254131 is 131452242.

It is not a de Polignac number, because 242254131 - 22 = 242254127 is a prime.

It is a super-2 number, since 2×2422541312 = 117374127973130322, which contains 22 as substring.

Its product of digits (1920) is a multiple of the sum of its prime factors (480).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242254141) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 659910 + ... + 660276.

It is an arithmetic number, because the mean of its divisors is an integer number (8359488).

Almost surely, 2242254131 is an apocalyptic number.

242254131 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

242254131 is a deficient number, since it is larger than the sum of its proper divisors (159001293).

242254131 is a wasteful number, since it uses less digits than its factorization.

242254131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 480 (or 437 counting only the distinct ones).

The product of its digits is 1920, while the sum is 24.

The square root of 242254131 is about 15564.5151225472. The cubic root of 242254131 is about 623.3860275228.

The spelling of 242254131 in words is "two hundred forty-two million, two hundred fifty-four thousand, one hundred thirty-one".

Divisors: 1 3 7 17 21 43 51 119 129 301 357 367 731 903 1101 1849 2193 2569 5117 5547 6239 7707 12943 15351 15781 18717 31433 38829 43673 47343 94299 110467 131019 220031 268277 331401 660093 678583 804831 1877939 2035749 4750081 5633817 11535911 14250243 34607733 80751377 242254131