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142806432 = 25319591327
BaseRepresentation
bin10001000001100…
…00110110100000
3100221201022121010
420200300312200
5243024301212
622100500520
73352556166
oct1040606640
9327638533
10142806432
117367964a
123b9aa740
1323780862
1414d75236
15c80d03c
hex8830da0

142806432 has 96 divisors (see below), whose sum is σ = 401587200. Its totient is φ = 44299008.

The previous prime is 142806427. The next prime is 142806437. The reversal of 142806432 is 234608241.

142806432 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (142806427) and next prime (142806437).

It is a tau number, because it is divible by the number of its divisors (96).

It is a self number, because there is not a number n which added to its sum of digits gives 142806432.

It is not an unprimeable number, because it can be changed into a prime (142806437) 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, 106953 + ... + 108279.

It is an arithmetic number, because the mean of its divisors is an integer number (4183200).

Almost surely, 2142806432 is an apocalyptic number.

142806432 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 142806432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (200793600).

142806432 is an abundant number, since it is smaller than the sum of its proper divisors (258780768).

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

142806432 is a wasteful number, since it uses less digits than its factorization.

142806432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1418 (or 1410 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 30.

The square root of 142806432 is about 11950.1645176960. The cubic root of 142806432 is about 522.6960957445.

The spelling of 142806432 in words is "one hundred forty-two million, eight hundred six thousand, four hundred thirty-two".

Divisors: 1 2 3 4 6 8 12 16 19 24 32 38 48 57 59 76 96 114 118 152 177 228 236 304 354 456 472 608 708 912 944 1121 1327 1416 1824 1888 2242 2654 2832 3363 3981 4484 5308 5664 6726 7962 8968 10616 13452 15924 17936 21232 25213 26904 31848 35872 42464 50426 53808 63696 75639 78293 100852 107616 127392 151278 156586 201704 234879 302556 313172 403408 469758 605112 626344 806816 939516 1210224 1252688 1487567 1879032 2420448 2505376 2975134 3758064 4462701 5950268 7516128 8925402 11900536 17850804 23801072 35701608 47602144 71403216 142806432