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145258048820 = 225231367231001
BaseRepresentation
bin1000011101001000001…
…1011110110100110100
3111212221021122102202002
42013102003132310310
54334442030030240
6150421452034432
713331426020463
oct2072203366464
9455837572662
10145258048820
1156670422035
122419a762a18
131090c0209a1
14705daa29da
153ba264bd15
hex21d20ded34

145258048820 has 48 divisors (see below), whose sum is σ = 318538821888. Its totient is φ = 55536096000.

The previous prime is 145258048673. The next prime is 145258048849. The reversal of 145258048820 is 28840852541.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 513320 + ... + 744320.

It is an arithmetic number, because the mean of its divisors is an integer number (6636225456).

Almost surely, 2145258048820 is an apocalyptic number.

145258048820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

145258048820 is an abundant number, since it is smaller than the sum of its proper divisors (173280773068).

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

145258048820 is a wasteful number, since it uses less digits than its factorization.

145258048820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 232400 (or 232398 counting only the distinct ones).

The product of its (nonzero) digits is 819200, while the sum is 47.

The spelling of 145258048820 in words is "one hundred forty-five billion, two hundred fifty-eight million, forty-eight thousand, eight hundred twenty".

Divisors: 1 2 4 5 10 20 23 46 92 115 230 460 1367 2734 5468 6835 13670 27340 31441 62882 125764 157205 231001 314410 462002 628820 924004 1155005 2310010 4620020 5313023 10626046 21252092 26565115 53130230 106260460 315778367 631556734 1263113468 1578891835 3157783670 6315567340 7262902441 14525804882 29051609764 36314512205 72629024410 145258048820