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144250470 = 234571319103
BaseRepresentation
bin10001001100100…
…01011001100110
3101001102200110000
420212101121212
5243412003340
622151442130
73401052210
oct1046213146
9331380400
10144250470
1174475571
1240386346
1323b67c10
141522d5b0
15c9e5d30
hex8991666

144250470 has 320 divisors, whose sum is σ = 507386880. Its totient is φ = 28553472.

The previous prime is 144250433. The next prime is 144250481. The reversal of 144250470 is 74052441.

144250470 is a `hidden beast` number, since 144 + 2 + 50 + 470 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 1400439 + ... + 1400541.

It is an arithmetic number, because the mean of its divisors is an integer number (1585584).

Almost surely, 2144250470 is an apocalyptic number.

144250470 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 144250470, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (253693440).

144250470 is an abundant number, since it is smaller than the sum of its proper divisors (363136410).

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

144250470 is a wasteful number, since it uses less digits than its factorization.

144250470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161 (or 152 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 27.

The square root of 144250470 is about 12010.4317158044. The cubic root of 144250470 is about 524.4519996192.

The spelling of 144250470 in words is "one hundred forty-four million, two hundred fifty thousand, four hundred seventy".