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144884744 = 231710310343
BaseRepresentation
bin10001010001011…
…00010000001000
3101002121220111122
420220230100020
5244042302434
622213214412
73406333334
oct1050542010
9332556448
10144884744
1174869064
1240631408
132402a824
14153567c4
15cabdc2e
hex8a2c408

144884744 has 32 divisors (see below), whose sum is σ = 290459520. Its totient is φ = 67512576.

The previous prime is 144884743. The next prime is 144884807. The reversal of 144884744 is 447488441.

It is a junction number, because it is equal to n+sod(n) for n = 144884695 and 144884704.

It is not an unprimeable number, because it can be changed into a prime (144884743) 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, 8837 + ... + 19179.

It is an arithmetic number, because the mean of its divisors is an integer number (9076860).

Almost surely, 2144884744 is an apocalyptic number.

It is an amenable number.

144884744 is an abundant number, since it is smaller than the sum of its proper divisors (145574776).

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

144884744 is a wasteful number, since it uses less digits than its factorization.

144884744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10469 (or 10465 counting only the distinct ones).

The product of its digits is 458752, while the sum is 44.

The square root of 144884744 is about 12036.8078824911. The cubic root of 144884744 is about 525.2195532199.

The spelling of 144884744 in words is "one hundred forty-four million, eight hundred eighty-four thousand, seven hundred forty-four".

Divisors: 1 2 4 8 17 34 68 103 136 206 412 824 1751 3502 7004 10343 14008 20686 41372 82744 175831 351662 703324 1065329 1406648 2130658 4261316 8522632 18110593 36221186 72442372 144884744