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145232612424 = 23322017119617
BaseRepresentation
bin1000011101000010001…
…0011100110001001000
3111212212111210010120100
42013100202130301020
54334414022044144
6150415142525400
713330666560054
oct2072042346110
9455774703510
10145232612424
1156658029319
1224192136860
1310906985c73
14705a560c64
153ba02c5269
hex21d089cc48

145232612424 has 24 divisors (see below), whose sum is σ = 393338325510. Its totient is φ = 48410870784.

The previous prime is 145232612423. The next prime is 145232612443. The reversal of 145232612424 is 424216232541.

145232612424 is a `hidden beast` number, since 1 + 4 + 5 + 2 + 32 + 612 + 4 + 2 + 4 = 666.

It can be written as a sum of positive squares in only one way, i.e., 92548591524 + 52684020900 = 304218^2 + 229530^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is a super-2 number, since 2×1452326124242 (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (145232612423) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1008559737 + ... + 1008559880.

Almost surely, 2145232612424 is an apocalyptic number.

It is an amenable number.

145232612424 is an abundant number, since it is smaller than the sum of its proper divisors (248105713086).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

145232612424 is a wasteful number, since it uses less digits than its factorization.

145232612424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2017119629 (or 2017119622 counting only the distinct ones).

The product of its digits is 92160, while the sum is 36.

Adding to 145232612424 its reverse (424216232541), we get a palindrome (569448844965).

The spelling of 145232612424 in words is "one hundred forty-five billion, two hundred thirty-two million, six hundred twelve thousand, four hundred twenty-four".

Divisors: 1 2 3 4 6 8 9 12 18 24 36 72 2017119617 4034239234 6051358851 8068478468 12102717702 16136956936 18154076553 24205435404 36308153106 48410870808 72616306212 145232612424