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242612653 = 1973211829
BaseRepresentation
bin11100111010111…
…11100110101101
3121220111222222211
432131133212231
5444102101103
640024010421
76004113343
oct1635374655
9556458884
10242612653
11114a48528
1269300a11
133b3570aa
1424315993
151647536d
hexe75f9ad

242612653 has 16 divisors (see below), whose sum is σ = 260420800. Its totient is φ = 225348480.

The previous prime is 242612651. The next prime is 242612659. The reversal of 242612653 is 356216242.

It is a cyclic number.

It is not a de Polignac number, because 242612653 - 21 = 242612651 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242612651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 292243 + ... + 293071.

It is an arithmetic number, because the mean of its divisors is an integer number (16276300).

Almost surely, 2242612653 is an apocalyptic number.

It is an amenable number.

242612653 is a deficient number, since it is larger than the sum of its proper divisors (17808147).

242612653 is a wasteful number, since it uses less digits than its factorization.

242612653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1132.

The product of its digits is 17280, while the sum is 31.

The square root of 242612653 is about 15576.0281522601. The cubic root of 242612653 is about 623.6934009417.

Adding to 242612653 its reverse (356216242), we get a palindrome (598828895).

The spelling of 242612653 in words is "two hundred forty-two million, six hundred twelve thousand, six hundred fifty-three".

Divisors: 1 19 73 211 829 1387 4009 15403 15751 60517 174919 292657 1149823 3323461 12769087 242612653