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145982751 = 33112011307
BaseRepresentation
bin10001011001110…
…00010100011111
3101011200200200120
420230320110133
5244332422001
622252530023
73421555455
oct1054702437
9334620616
10145982751
1175449002
1240a80913
1324323535
14155609d5
15cc39236
hex8b3851f

145982751 has 16 divisors (see below), whose sum is σ = 201243648. Its totient is φ = 94032000.

The previous prime is 145982747. The next prime is 145982773. The reversal of 145982751 is 157289541.

145982751 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 145982751 - 22 = 145982747 is a prime.

It is a super-3 number, since 3×1459827513 (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145982051) 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, 111040 + ... + 112346.

It is an arithmetic number, because the mean of its divisors is an integer number (12577728).

Almost surely, 2145982751 is an apocalyptic number.

145982751 is a deficient number, since it is larger than the sum of its proper divisors (55260897).

145982751 is a wasteful number, since it uses less digits than its factorization.

145982751 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2542.

The product of its digits is 100800, while the sum is 42.

The square root of 145982751 is about 12082.3321838129. The cubic root of 145982751 is about 526.5430052470.

The spelling of 145982751 in words is "one hundred forty-five million, nine hundred eighty-two thousand, seven hundred fifty-one".

Divisors: 1 3 31 93 1201 1307 3603 3921 37231 40517 111693 121551 1569707 4709121 48660917 145982751