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242620833 = 3713888721
BaseRepresentation
bin11100111011000…
…01100110100001
3121220112102012210
432131201212201
5444102331313
640024112333
76004146240
oct1635414641
9556472183
10242620833
11114a53694
12693056a9
133b35aa30
1424318957
15164779c3
hexe7619a1

242620833 has 16 divisors (see below), whose sum is σ = 398147456. Its totient is φ = 127975680.

The previous prime is 242620789. The next prime is 242620841. The reversal of 242620833 is 338026242.

242620833 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 242620833 - 26 = 242620769 is a prime.

It is a super-2 number, since 2×2426208332 = 117729737211227778, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 242620833.

It is not an unprimeable number, because it can be changed into a prime (242620883) 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, 444088 + ... + 444633.

It is an arithmetic number, because the mean of its divisors is an integer number (24884216).

Almost surely, 2242620833 is an apocalyptic number.

It is an amenable number.

242620833 is a deficient number, since it is larger than the sum of its proper divisors (155526623).

242620833 is a wasteful number, since it uses less digits than its factorization.

242620833 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 888744.

The product of its (nonzero) digits is 13824, while the sum is 30.

The square root of 242620833 is about 15576.2907330340. The cubic root of 242620833 is about 623.7004104067.

The spelling of 242620833 in words is "two hundred forty-two million, six hundred twenty thousand, eight hundred thirty-three".

Divisors: 1 3 7 13 21 39 91 273 888721 2666163 6221047 11553373 18663141 34660119 80873611 242620833