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142425436 = 2247337523
BaseRepresentation
bin10000111110100…
…11110101011100
3100220222221222011
420133103311130
5242430103221
622044401004
73346411336
oct1037236534
9326887864
10142425436
117343937a
123b846164
132367930a
1414cb6456
15c7851e1
hex87d3d5c

142425436 has 12 divisors (see below), whose sum is σ = 249330312. Its totient is φ = 71188208.

The previous prime is 142425403. The next prime is 142425443. The reversal of 142425436 is 634524241.

It is a junction number, because it is equal to n+sod(n) for n = 142425398 and 142425407.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15171 + ... + 22693.

It is an arithmetic number, because the mean of its divisors is an integer number (20777526).

Almost surely, 2142425436 is an apocalyptic number.

It is an amenable number.

142425436 is a deficient number, since it is larger than the sum of its proper divisors (106904876).

142425436 is a wasteful number, since it uses less digits than its factorization.

142425436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12260 (or 12258 counting only the distinct ones).

The product of its digits is 23040, while the sum is 31.

The square root of 142425436 is about 11934.2128353738. The cubic root of 142425436 is about 522.2308447917.

Adding to 142425436 its reverse (634524241), we get a palindrome (776949677).

The spelling of 142425436 in words is "one hundred forty-two million, four hundred twenty-five thousand, four hundred thirty-six".

Divisors: 1 2 4 4733 7523 9466 15046 18932 30092 35606359 71212718 142425436