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145828807 = 1311113197
BaseRepresentation
bin10001011000100…
…10101111000111
3101011101212111221
420230102233013
5244313010212
622245341211
73420344605
oct1054225707
9334355457
10145828807
1175353383
1240a07807
132429b447
1415520875
15cc08807
hex8b12bc7

145828807 has 4 divisors (see below), whose sum is σ = 146942136. Its totient is φ = 144715480.

The previous prime is 145828799. The next prime is 145828829. The reversal of 145828807 is 708828541.

145828807 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 708828541 = 4117288501.

It is a cyclic number.

It is not a de Polignac number, because 145828807 - 23 = 145828799 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145828847) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 556468 + ... + 556729.

It is an arithmetic number, because the mean of its divisors is an integer number (36735534).

Almost surely, 2145828807 is an apocalyptic number.

145828807 is a deficient number, since it is larger than the sum of its proper divisors (1113329).

145828807 is a wasteful number, since it uses less digits than its factorization.

145828807 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1113328.

The product of its (nonzero) digits is 143360, while the sum is 43.

The square root of 145828807 is about 12075.9598790324. The cubic root of 145828807 is about 526.3578540438.

The spelling of 145828807 in words is "one hundred forty-five million, eight hundred twenty-eight thousand, eight hundred seven".

Divisors: 1 131 1113197 145828807