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144770044 = 22191904869
BaseRepresentation
bin10001010000100…
…00001111111100
3101002102002011111
420220100033330
5244030120134
622210531404
73405345046
oct1050201774
9332362144
10144770044
117479a971
1240596b64
1323cba563
1415326a96
15ca99c64
hex8a103fc

144770044 has 12 divisors (see below), whose sum is σ = 266681800. Its totient is φ = 68575248.

The previous prime is 144769997. The next prime is 144770069. The reversal of 144770044 is 440077441.

It is a junction number, because it is equal to n+sod(n) for n = 144769988 and 144770015.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 952359 + ... + 952510.

Almost surely, 2144770044 is an apocalyptic number.

It is an amenable number.

144770044 is a deficient number, since it is larger than the sum of its proper divisors (121911756).

144770044 is a wasteful number, since it uses less digits than its factorization.

144770044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1904892 (or 1904890 counting only the distinct ones).

The product of its (nonzero) digits is 12544, while the sum is 31.

The square root of 144770044 is about 12032.0423868934. The cubic root of 144770044 is about 525.0809175352.

The spelling of 144770044 in words is "one hundred forty-four million, seven hundred seventy thousand, forty-four".

Divisors: 1 2 4 19 38 76 1904869 3809738 7619476 36192511 72385022 144770044