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38430423818743 = 11195571279258109
BaseRepresentation
bin10001011110011110001111…
…10000101010000111110111
312001001220122022102122201211
420233033013300222013313
520014121001444144433
6213422405403302251
711044335504452455
oct1057170760520767
9161056568378654
1038430423818743
1111277284403a40
1243880a721a987
131859c86797748
1496c08463b9d5
154699e457c8cd
hex22f3c7c2a1f7

38430423818743 has 32 divisors (see below), whose sum is σ = 44244596736000. Its totient is φ = 33012591361920.

The previous prime is 38430423818741. The next prime is 38430423818837. The reversal of 38430423818743 is 34781832403483.

It is a cyclic number.

It is not a de Polignac number, because 38430423818743 - 21 = 38430423818741 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 (38430423818741) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 148763173 + ... + 149021281.

It is an arithmetic number, because the mean of its divisors is an integer number (1382643648000).

Almost surely, 238430423818743 is an apocalyptic number.

38430423818743 is a deficient number, since it is larger than the sum of its proper divisors (5814172917257).

38430423818743 is a wasteful number, since it uses less digits than its factorization.

38430423818743 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 259975.

The product of its (nonzero) digits is 37158912, while the sum is 58.

The spelling of 38430423818743 in words is "thirty-eight trillion, four hundred thirty billion, four hundred twenty-three million, eight hundred eighteen thousand, seven hundred forty-three".

Divisors: 1 11 19 209 557 1279 6127 10583 14069 24301 116413 258109 267311 712403 2839199 4904071 7836433 13535657 53944781 143766713 148892227 330121411 1581433843 2731567547 3631335521 6272306809 30047243017 68995374899 183877625927 2022653885197 3493674892613 38430423818743