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142849053402 = 23112545785021
BaseRepresentation
bin1000010100001001110…
…1111001001011011010
3111122201101200210021120
42011002131321023122
54320023324202102
6145342434550110
713214634630306
oct2050235711332
9448641623246
10142849053402
1155644626130
1223827a38336
1310616c05803
146cb1b80d06
153ab0dea6bc
hex21427792da

142849053402 has 32 divisors (see below), whose sum is σ = 311686570944. Its totient is φ = 43285382400.

The previous prime is 142849053401. The next prime is 142849053419. The reversal of 142849053402 is 204350948241.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (142849053401) 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, 1637652 + ... + 1722672.

It is an arithmetic number, because the mean of its divisors is an integer number (9740205342).

Almost surely, 2142849053402 is an apocalyptic number.

142849053402 is an abundant number, since it is smaller than the sum of its proper divisors (168837517542).

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

142849053402 is a wasteful number, since it uses less digits than its factorization.

142849053402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110494.

The product of its (nonzero) digits is 276480, while the sum is 42.

The spelling of 142849053402 in words is "one hundred forty-two billion, eight hundred forty-nine million, fifty-three thousand, four hundred two".

Divisors: 1 2 3 6 11 22 33 66 25457 50914 76371 85021 152742 170042 255063 280027 510126 560054 840081 935231 1680162 1870462 2805693 5611386 2164379597 4328759194 6493138791 12986277582 23808175567 47616351134 71424526701 142849053402