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69481424142 = 23213793758597
BaseRepresentation
bin100000010110101101…
…0100110010100001110
320122100021120001112100
41000231122212110032
52114244221033032
651530324015530
75006546234454
oct1005532462416
9218307501470
1069481424142
11275154a8389
12115712315a6
136723b8a430
143511bc69d4
151c19d2897c
hex102d6a650e

69481424142 has 48 divisors (see below), whose sum is σ = 164175560640. Its totient is φ = 21108275136.

The previous prime is 69481424141. The next prime is 69481424143. The reversal of 69481424142 is 24142418496.

69481424142 is a `hidden beast` number, since 6 + 9 + 4 + 81 + 424 + 142 = 666.

It is an interprime number because it is at equal distance from previous prime (69481424141) and next prime (69481424143).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (69481424141) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1860813 + ... + 1897784.

It is an arithmetic number, because the mean of its divisors is an integer number (3420324180).

Almost surely, 269481424142 is an apocalyptic number.

69481424142 is an abundant number, since it is smaller than the sum of its proper divisors (94694136498).

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

69481424142 is a wasteful number, since it uses less digits than its factorization.

69481424142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3758697 (or 3758694 counting only the distinct ones).

The product of its digits is 442368, while the sum is 45.

The spelling of 69481424142 in words is "sixty-nine billion, four hundred eighty-one million, four hundred twenty-four thousand, one hundred forty-two".

Divisors: 1 2 3 6 9 13 18 26 39 78 79 117 158 234 237 474 711 1027 1422 2054 3081 6162 9243 18486 3758597 7517194 11275791 22551582 33827373 48861761 67654746 97723522 146585283 293170566 296929163 439755849 593858326 879511698 890787489 1781574978 2672362467 3860079119 5344724934 7720158238 11580237357 23160474714 34740712071 69481424142