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145424444570 = 2518180344997
BaseRepresentation
bin1000011101101111111…
…0001110110010011010
3111220100212202012210122
42013123332032302122
54340312124211240
6150450154313242
713335516245336
oct2073376166232
9456325665718
10145424444570
1156746342689
1224226428822
1310937640602
147077c187c6
153bb20694b5
hex21dbf8ec9a

145424444570 has 16 divisors (see below), whose sum is σ = 263210213448. Its totient is φ = 57848397120.

The previous prime is 145424444569. The next prime is 145424444579. The reversal of 145424444570 is 75444424541.

It can be written as a sum of positive squares in 4 ways, for example, as 59393101849 + 86031342721 = 243707^2 + 293311^2 .

It is a super-2 number, since 2×1454244445702 (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (145424444579) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40170689 + ... + 40174308.

Almost surely, 2145424444570 is an apocalyptic number.

145424444570 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

145424444570 is a deficient number, since it is larger than the sum of its proper divisors (117785768878).

145424444570 is a wasteful number, since it uses less digits than its factorization.

145424444570 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80345185.

The product of its (nonzero) digits is 1433600, while the sum is 44.

The spelling of 145424444570 in words is "one hundred forty-five billion, four hundred twenty-four million, four hundred forty-four thousand, five hundred seventy".

Divisors: 1 2 5 10 181 362 905 1810 80344997 160689994 401724985 803449970 14542444457 29084888914 72712222285 145424444570