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144470844 = 22337191099
BaseRepresentation
bin10001001110001…
…11001100111100
3101001211212202000
420213013030330
5243441031334
622200302300
73402660540
oct1047071474
9331755660
10144470844
11746060a1
1240471990
1323c1430b
1415289a20
15ca3b299
hex89c733c

144470844 has 48 divisors (see below), whose sum is σ = 428064000. Its totient is φ = 41277168.

The previous prime is 144470771. The next prime is 144470849. The reversal of 144470844 is 448074441.

144470844 is a `hidden beast` number, since 144 + 470 + 8 + 44 = 666.

144470844 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 144470799 and 144470808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144470849) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 94794 + ... + 96305.

It is an arithmetic number, because the mean of its divisors is an integer number (8918000).

Almost surely, 2144470844 is an apocalyptic number.

144470844 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

144470844 is an abundant number, since it is smaller than the sum of its proper divisors (283593156).

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

144470844 is a wasteful number, since it uses less digits than its factorization.

144470844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191119 (or 191111 counting only the distinct ones).

The product of its (nonzero) digits is 57344, while the sum is 36.

The square root of 144470844 is about 12019.6024892673. The cubic root of 144470844 is about 524.7189352699.

The spelling of 144470844 in words is "one hundred forty-four million, four hundred seventy thousand, eight hundred forty-four".

Divisors: 1 2 3 4 6 7 9 12 14 18 21 27 28 36 42 54 63 84 108 126 189 252 378 756 191099 382198 573297 764396 1146594 1337693 1719891 2293188 2675386 3439782 4013079 5159673 5350772 6879564 8026158 10319346 12039237 16052316 20638692 24078474 36117711 48156948 72235422 144470844