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142302836 = 22138332971
BaseRepresentation
bin10000111101101…
…01111001110100
3100220202201210102
420132311321310
5242412142321
622042013232
73345361034
oct1036657164
9326681712
10142302836
1173365255
123b7a7218
1323635580
1414c838c4
15c75dc0b
hex87b5e74

142302836 has 24 divisors (see below), whose sum is σ = 271425504. Its totient is φ = 64884960.

The previous prime is 142302833. The next prime is 142302847. The reversal of 142302836 is 638203241.

It is a junction number, because it is equal to n+sod(n) for n = 142302799 and 142302808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142302833) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12170 + ... + 20801.

It is an arithmetic number, because the mean of its divisors is an integer number (11309396).

Almost surely, 2142302836 is an apocalyptic number.

It is an amenable number.

142302836 is a deficient number, since it is larger than the sum of its proper divisors (129122668).

142302836 is a wasteful number, since it uses less digits than its factorization.

142302836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33071 (or 33069 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 29.

The square root of 142302836 is about 11929.0752365806. The cubic root of 142302836 is about 522.0809561125.

The spelling of 142302836 in words is "one hundred forty-two million, three hundred two thousand, eight hundred thirty-six".

Divisors: 1 2 4 13 26 52 83 166 332 1079 2158 4316 32971 65942 131884 428623 857246 1714492 2736593 5473186 10946372 35575709 71151418 142302836