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231444660348 = 223211253132383
BaseRepresentation
bin1101011110001100101…
…1010100000001111100
3211010101202221221022100
43113203023110001330
512242444313112343
6254154010145100
722502262103416
oct3274313240174
9733352857270
10231444660348
118a178527a00
1238a32422190
1318a95a9b885
14b2b83459b6
156048d159d3
hex35e32d407c

231444660348 has 54 divisors (see below), whose sum is σ = 643061243552. Its totient is φ = 70134744240.

The previous prime is 231444660313. The next prime is 231444660431. The reversal of 231444660348 is 843066444132.

231444660348 is a `hidden beast` number, since 2 + 3 + 144 + 466 + 0 + 3 + 48 = 666.

231444660348 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×2314446603482 (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 17 ways as a sum of consecutive naturals, for example, 26561836 + ... + 26570547.

Almost surely, 2231444660348 is an apocalyptic number.

It is an amenable number.

231444660348 is an abundant number, since it is smaller than the sum of its proper divisors (411616583204).

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

231444660348 is a wasteful number, since it uses less digits than its factorization.

231444660348 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53132415 (or 53132399 counting only the distinct ones).

The product of its (nonzero) digits is 1327104, while the sum is 45.

The spelling of 231444660348 in words is "two hundred thirty-one billion, four hundred forty-four million, six hundred sixty thousand, three hundred forty-eight".

Divisors: 1 2 3 4 6 9 11 12 18 22 33 36 44 66 99 121 132 198 242 363 396 484 726 1089 1452 2178 4356 53132383 106264766 159397149 212529532 318794298 478191447 584456213 637588596 956382894 1168912426 1753368639 1912765788 2337824852 3506737278 5260105917 6429018343 7013474556 10520211834 12858036686 19287055029 21040423668 25716073372 38574110058 57861165087 77148220116 115722330174 231444660348