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145133351 = 11313711503
BaseRepresentation
bin10001010011010…
…00111100100111
3101010002112112022
420221220330213
5244123231401
622222413355
73411420206
oct1051507447
9333075468
10145133351
1174a18920
124073125b
13240b6a2c
14153bd23d
15cb1c71b
hex8a68f27

145133351 has 16 divisors (see below), whose sum is σ = 167866368. Its totient is φ = 124221600.

The previous prime is 145133347. The next prime is 145133353. The reversal of 145133351 is 153331541.

145133351 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 145133351 - 22 = 145133347 is a prime.

It is a Smith number, since the sum of its digits (26) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 145133351.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145133353) 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, 6866 + ... + 18368.

It is an arithmetic number, because the mean of its divisors is an integer number (10491648).

Almost surely, 2145133351 is an apocalyptic number.

145133351 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

145133351 is a deficient number, since it is larger than the sum of its proper divisors (22733017).

145133351 is a wasteful number, since it uses less digits than its factorization.

145133351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11582.

The product of its digits is 2700, while the sum is 26.

The square root of 145133351 is about 12047.1304052044. The cubic root of 145133351 is about 525.5197887535.

Adding to 145133351 its reverse (153331541), we get a palindrome (298464892).

The spelling of 145133351 in words is "one hundred forty-five million, one hundred thirty-three thousand, three hundred fifty-one".

Divisors: 1 11 31 37 341 407 1147 11503 12617 126533 356593 425611 3922523 4681721 13193941 145133351