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145451224205 = 5717773316243
BaseRepresentation
bin1000011101110110010…
…0011000110010001101
3111220102202010202112222
42013131210120302031
54340341003133310
6150452552305125
713336263002150
oct2073544306215
9456382122488
10145451224205
115675a473611
12242333a21a5
1310940058851
14707b5c9c97
153bb45a9055
hex21dd918c8d

145451224205 has 32 divisors (see below), whose sum is σ = 211483747584. Its totient is φ = 93749308416.

The previous prime is 145451224201. The next prime is 145451224271. The reversal of 145451224205 is 502422154541.

It is a cyclic number.

It is not a de Polignac number, because 145451224205 - 22 = 145451224201 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145451224201) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 301814 + ... + 618056.

It is an arithmetic number, because the mean of its divisors is an integer number (6608867112).

Almost surely, 2145451224205 is an apocalyptic number.

It is an amenable number.

145451224205 is a deficient number, since it is larger than the sum of its proper divisors (66032523379).

145451224205 is a wasteful number, since it uses less digits than its factorization.

145451224205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 317045.

The product of its (nonzero) digits is 64000, while the sum is 35.

Adding to 145451224205 its reverse (502422154541), we get a palindrome (647873378746).

The spelling of 145451224205 in words is "one hundred forty-five billion, four hundred fifty-one million, two hundred twenty-four thousand, two hundred five".

Divisors: 1 5 7 17 35 85 119 595 773 3865 5411 13141 27055 65705 91987 316243 459935 1581215 2213701 5376131 11068505 26880655 37632917 188164585 244455839 1222279195 1711190873 4155749263 8555954365 20778746315 29090244841 145451224205