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13785851442 = 23112011103867
BaseRepresentation
bin11001101011011001…
…10110011000110010
31022120202111210222110
430311230312120302
5211213134221232
610155542350150
7665424542466
oct146554663062
938522453873
1013785851442
115934832260
122808a2b356
1313b913c95c
1494ac904a6
1555a431acc
hex335b36632

13785851442 has 32 divisors (see below), whose sum is σ = 30093467904. Its totient is φ = 4175413200.

The previous prime is 13785851411. The next prime is 13785851449. The reversal of 13785851442 is 24415858731.

It is a junction number, because it is equal to n+sod(n) for n = 13785851391 and 13785851400.

It is not an unprimeable number, because it can be changed into a prime (13785851449) 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, 80793 + ... + 184659.

It is an arithmetic number, because the mean of its divisors is an integer number (940420872).

Almost surely, 213785851442 is an apocalyptic number.

13785851442 is an abundant number, since it is smaller than the sum of its proper divisors (16307616462).

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

13785851442 is a wasteful number, since it uses less digits than its factorization.

13785851442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105894.

The product of its digits is 1075200, while the sum is 48.

The spelling of 13785851442 in words is "thirteen billion, seven hundred eighty-five million, eight hundred fifty-one thousand, four hundred forty-two".

Divisors: 1 2 3 6 11 22 33 66 2011 4022 6033 12066 22121 44242 66363 103867 132726 207734 311601 623202 1142537 2285074 3427611 6855222 208876537 417753074 626629611 1253259222 2297641907 4595283814 6892925721 13785851442