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145671176540 = 22543540731327
BaseRepresentation
bin1000011110101010101…
…1011100000101011100
3111221000002000111102202
42013222223130011130
54341313310122130
6150530450511032
713344603366461
oct2075253340534
9457002014382
10145671176540
1156862643aaa
1224294b95478
13109767aa666
14709c8c3668
153bc8a55145
hex21eaadc15c

145671176540 has 48 divisors (see below), whose sum is σ = 313091530752. Its totient is φ = 56901047616.

The previous prime is 145671176527. The next prime is 145671176549. The reversal of 145671176540 is 45671176541.

145671176540 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145671176549) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4634357 + ... + 4665683.

It is an arithmetic number, because the mean of its divisors is an integer number (6522740224).

Almost surely, 2145671176540 is an apocalyptic number.

145671176540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

145671176540 is an abundant number, since it is smaller than the sum of its proper divisors (167420354212).

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

145671176540 is a wasteful number, since it uses less digits than its factorization.

145671176540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36786 (or 36784 counting only the distinct ones).

The product of its (nonzero) digits is 705600, while the sum is 47.

Subtracting from 145671176540 its reverse (45671176541), we obtain a palindrome (99999999999).

The spelling of 145671176540 in words is "one hundred forty-five billion, six hundred seventy-one million, one hundred seventy-six thousand, five hundred forty".

Divisors: 1 2 4 5 10 20 43 86 172 215 430 860 5407 10814 21628 27035 31327 54070 62654 108140 125308 156635 232501 313270 465002 626540 930004 1162505 1347061 2325010 2694122 4650020 5388244 6735305 13470610 26941220 169385089 338770178 677540356 846925445 1693850890 3387701780 7283558827 14567117654 29134235308 36417794135 72835588270 145671176540