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230154443431 = 11374313150931
BaseRepresentation
bin1101011001011001000…
…1100001101010100111
3211000001212012010102121
43112112101201222213
512232324014142211
6253422000250411
722425304330153
oct3262621415247
9730055163377
10230154443431
1189676201930
1238732310a07
131891b6aa803
14b1d4c50063
155ec0909271
hex3596461aa7

230154443431 has 16 divisors (see below), whose sum is σ = 263860299648. Its totient is φ = 198842061600.

The previous prime is 230154443381. The next prime is 230154443447. The reversal of 230154443431 is 134344451032.

230154443431 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 230154443431 - 211 = 230154441383 is a prime.

It is a super-2 number, since 2×2301544434312 (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230154443471) 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, 6557965 + ... + 6592966.

It is an arithmetic number, because the mean of its divisors is an integer number (16491268728).

Almost surely, 2230154443431 is an apocalyptic number.

230154443431 is a deficient number, since it is larger than the sum of its proper divisors (33705856217).

230154443431 is a wasteful number, since it uses less digits than its factorization.

230154443431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13151022.

The product of its (nonzero) digits is 69120, while the sum is 34.

Adding to 230154443431 its reverse (134344451032), we get a palindrome (364498894463).

The spelling of 230154443431 in words is "two hundred thirty billion, one hundred fifty-four million, four hundred forty-three thousand, four hundred thirty-one".

Divisors: 1 11 37 43 407 473 1591 17501 13150931 144660241 486584447 565490033 5352428917 6220390363 20923131221 230154443431