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145610020 = 22517594139
BaseRepresentation
bin10001010110111…
…01010100100100
3101010222202101201
420223131110210
5244234010040
622240532244
73415444003
oct1053352444
9333882351
10145610020
1175213a66
1240921084
132422299a
14154a4c3a
15cbb3a9a
hex8add524

145610020 has 24 divisors (see below), whose sum is σ = 306028800. Its totient is φ = 58196832.

The previous prime is 145610011. The next prime is 145610021. The reversal of 145610020 is 20016541.

145610020 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 145610020.

It is not an unprimeable number, because it can be changed into a prime (145610021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33111 + ... + 37249.

It is an arithmetic number, because the mean of its divisors is an integer number (12751200).

Almost surely, 2145610020 is an apocalyptic number.

145610020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

145610020 is an abundant number, since it is smaller than the sum of its proper divisors (160418780).

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

145610020 is a wasteful number, since it uses less digits than its factorization.

145610020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5907 (or 5905 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 145610020 is about 12066.8976957626. The cubic root of 145610020 is about 526.0944906798.

Adding to 145610020 its reverse (20016541), we get a palindrome (165626561).

It can be divided in two parts, 1456 and 10020, that added together give a triangular number (11476 = T151).

The spelling of 145610020 in words is "one hundred forty-five million, six hundred ten thousand, twenty".

Divisors: 1 2 4 5 10 20 1759 3518 4139 7036 8278 8795 16556 17590 20695 35180 41390 82780 7280501 14561002 29122004 36402505 72805010 145610020