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144242688 = 2113171381
BaseRepresentation
bin10001001100011…
…11100000000000
3101001102021202210
420212033200000
5243411231223
622151342120
73401020422
oct1046174000
9331367683
10144242688
117446a737
1240381940
1323b64505
141522a812
15c9e3893
hex898f800

144242688 has 96 divisors (see below), whose sum is σ = 407468880. Its totient is φ = 45219840.

The previous prime is 144242653. The next prime is 144242689. The reversal of 144242688 is 886242441.

It is a tau number, because it is divible by the number of its divisors (96).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144242689) 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, 103758 + ... + 105138.

Almost surely, 2144242688 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 144242688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (203734440).

144242688 is an abundant number, since it is smaller than the sum of its proper divisors (263226192).

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

144242688 is a wasteful number, since it uses less digits than its factorization.

144242688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1423 (or 1403 counting only the distinct ones).

The product of its digits is 98304, while the sum is 39.

The square root of 144242688 is about 12010.1077430638. The cubic root of 144242688 is about 524.4425684336.

The spelling of 144242688 in words is "one hundred forty-four million, two hundred forty-two thousand, six hundred eighty-eight".

Divisors: 1 2 3 4 6 8 12 16 17 24 32 34 48 51 64 68 96 102 128 136 192 204 256 272 384 408 512 544 768 816 1024 1088 1381 1536 1632 2048 2176 2762 3072 3264 4143 4352 5524 6144 6528 8286 8704 11048 13056 16572 17408 22096 23477 26112 33144 34816 44192 46954 52224 66288 70431 88384 93908 104448 132576 140862 176768 187816 265152 281724 353536 375632 530304 563448 707072 751264 1060608 1126896 1414144 1502528 2121216 2253792 2828288 3005056 4242432 4507584 6010112 8484864 9015168 12020224 18030336 24040448 36060672 48080896 72121344 144242688