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145214332131 = 31111551380957
BaseRepresentation
bin1000011100111101110…
…0101101110011100011
3111212211020101101201110
42013033130231303203
54334344332112011
6150413251034403
713330355312541
oct2071734556343
9455736341643
10145214332131
1156648783040
1224187b9ba03
1310902c5551b
147057d62d91
153b9d8b3ba6
hex21cf72dce3

145214332131 has 16 divisors (see below), whose sum is σ = 211239687168. Its totient is φ = 88000836000.

The previous prime is 145214332091. The next prime is 145214332157. The reversal of 145214332131 is 131233412541.

It is not a de Polignac number, because 145214332131 - 214 = 145214315747 is a prime.

It is a super-2 number, since 2×1452143321312 (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (145214332181) 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, 190705 + ... + 571661.

It is an arithmetic number, because the mean of its divisors is an integer number (13202480448).

Almost surely, 2145214332131 is an apocalyptic number.

145214332131 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

145214332131 is a deficient number, since it is larger than the sum of its proper divisors (66025355037).

145214332131 is a wasteful number, since it uses less digits than its factorization.

145214332131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 392522.

The product of its digits is 8640, while the sum is 30.

Adding to 145214332131 its reverse (131233412541), we get a palindrome (276447744672).

The spelling of 145214332131 in words is "one hundred forty-five billion, two hundred fourteen million, three hundred thirty-two thousand, one hundred thirty-one".

Divisors: 1 3 11 33 11551 34653 127061 380957 381183 1142871 4190527 12571581 4400434307 13201302921 48404777377 145214332131