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148844920 = 2357531589
BaseRepresentation
bin10001101111100…
…11000101111000
3101101002002211211
420313303011320
5301101014140
622434132504
73455106130
oct1067630570
9341062754
10148844920
1177023434
1241a21134
1324ab6223
1415aa7ac0
15d1022ea
hex8df3178

148844920 has 32 divisors (see below), whose sum is σ = 382744800. Its totient is φ = 51032448.

The previous prime is 148844903. The next prime is 148844923. The reversal of 148844920 is 29448841.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (148844923) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 265515 + ... + 266074.

It is an arithmetic number, because the mean of its divisors is an integer number (11960775).

Almost surely, 2148844920 is an apocalyptic number.

148844920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

148844920 is an abundant number, since it is smaller than the sum of its proper divisors (233899880).

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

148844920 is a wasteful number, since it uses less digits than its factorization.

148844920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 531607 (or 531603 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 40.

The square root of 148844920 is about 12200.2016376780. The cubic root of 148844920 is about 529.9619291510.

The spelling of 148844920 in words is "one hundred forty-eight million, eight hundred forty-four thousand, nine hundred twenty".

Divisors: 1 2 4 5 7 8 10 14 20 28 35 40 56 70 140 280 531589 1063178 2126356 2657945 3721123 4252712 5315890 7442246 10631780 14884492 18605615 21263560 29768984 37211230 74422460 148844920