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145012321030 = 2530697472399
BaseRepresentation
bin1000011100001101101…
…0000110101100000110
3111212022011021011120211
42013003122012230012
54333441123233110
6150341233150034
713322353251103
oct2070332065406
9455264234524
10145012321030
1156554747115
12241303bb31a
13108a0145a25
1470391b9aaa
153b8acad98a
hex21c3686b06

145012321030 has 16 divisors (see below), whose sum is σ = 261031233600. Its totient is φ = 58002916032.

The previous prime is 145012320997. The next prime is 145012321031. The reversal of 145012321030 is 30123210541.

It is a happy number.

It is an alternating number because its digits alternate between odd and even.

It is a junction number, because it is equal to n+sod(n) for n = 145012320992 and 145012321010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145012321031) 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, 70771 + ... + 543169.

It is an arithmetic number, because the mean of its divisors is an integer number (16314452100).

Almost surely, 2145012321030 is an apocalyptic number.

145012321030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

145012321030 is a deficient number, since it is larger than the sum of its proper divisors (116018912570).

145012321030 is a wasteful number, since it uses less digits than its factorization.

145012321030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 503103.

The product of its (nonzero) digits is 720, while the sum is 22.

Adding to 145012321030 its reverse (30123210541), we get a palindrome (175135531571).

The spelling of 145012321030 in words is "one hundred forty-five billion, twelve million, three hundred twenty-one thousand, thirty".

Divisors: 1 2 5 10 30697 61394 153485 306970 472399 944798 2361995 4723990 14501232103 29002464206 72506160515 145012321030