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145214882 = 285212
BaseRepresentation
bin10001010011111…
…00110110100010
3101010020200100222
420221330312202
5244133334012
622224243042
73412210001
oct1051746642
9333220328
10145214882
1174a740aa
1240770482
1324114b87
1415400c38
15cb36972
hex8a7cda2

145214882 has 6 divisors (see below), whose sum is σ = 217847889. Its totient is φ = 72598920.

The previous prime is 145214869. The next prime is 145214897. The reversal of 145214882 is 288412541.

145214882 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 145178401 + 36481 = 12049^2 + 191^2 .

It is an ABA number since it can be written as A⋅BA, here for A=2, B=8521.

It is a super-3 number, since 3×1452148823 (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 12782 + ... + 21302.

Almost surely, 2145214882 is an apocalyptic number.

145214882 is a deficient number, since it is larger than the sum of its proper divisors (72633007).

145214882 is an frugal number, since it uses more digits than its factorization.

145214882 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17044 (or 8523 counting only the distinct ones).

The product of its digits is 20480, while the sum is 35.

The square root of 145214882 is about 12050.5137649811. The cubic root of 145214882 is about 525.6181767369.

The spelling of 145214882 in words is "one hundred forty-five million, two hundred fourteen thousand, eight hundred eighty-two".

Divisors: 1 2 8521 17042 72607441 145214882