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144793938 = 23214311261
BaseRepresentation
bin10001010000101…
…10000101010010
3101002110021221110
420220112011102
5244031401223
622211234150
73405504522
oct1050260522
9332407843
10144793938
1174806913
12405a8956
1323cc83b3
1415331682
15caa1d93
hex8a16152

144793938 has 16 divisors (see below), whose sum is σ = 289748736. Its totient is φ = 48237840.

The previous prime is 144793867. The next prime is 144793939. The reversal of 144793938 is 839397441.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (144793939) 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, 7228 + ... + 18488.

It is an arithmetic number, because the mean of its divisors is an integer number (18109296).

Almost surely, 2144793938 is an apocalyptic number.

144793938 is an abundant number, since it is smaller than the sum of its proper divisors (144954798).

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

144793938 is a wasteful number, since it uses less digits than its factorization.

144793938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13409.

The product of its digits is 653184, while the sum is 48.

The square root of 144793938 is about 12033.0352779338. The cubic root of 144793938 is about 525.1098037903.

The spelling of 144793938 in words is "one hundred forty-four million, seven hundred ninety-three thousand, nine hundred thirty-eight".

Divisors: 1 2 3 6 2143 4286 6429 11261 12858 22522 33783 67566 24132323 48264646 72396969 144793938