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144764412 = 223135317509
BaseRepresentation
bin10001010000011…
…10110111111100
3101002101210102220
420220032313330
5244024430122
622210445340
73405322452
oct1050166774
9332353386
10144764412
1174796711
1240593850
1323cb7b20
14153249d2
15ca9825c
hex8a0edfc

144764412 has 48 divisors (see below), whose sum is σ = 370651680. Its totient is φ = 43699968.

The previous prime is 144764393. The next prime is 144764423. The reversal of 144764412 is 214467441.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 487 + ... + 17022.

It is an arithmetic number, because the mean of its divisors is an integer number (7721910).

Almost surely, 2144764412 is an apocalyptic number.

144764412 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 144764412, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (185325840).

144764412 is an abundant number, since it is smaller than the sum of its proper divisors (225887268).

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

144764412 is a wasteful number, since it uses less digits than its factorization.

144764412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17582 (or 17580 counting only the distinct ones).

The product of its digits is 21504, while the sum is 33.

The square root of 144764412 is about 12031.8083428884. The cubic root of 144764412 is about 525.0741083593.

The spelling of 144764412 in words is "one hundred forty-four million, seven hundred sixty-four thousand, four hundred twelve".

Divisors: 1 2 3 4 6 12 13 26 39 52 53 78 106 156 159 212 318 636 689 1378 2067 2756 4134 8268 17509 35018 52527 70036 105054 210108 227617 455234 682851 910468 927977 1365702 1855954 2731404 2783931 3711908 5567862 11135724 12063701 24127402 36191103 48254804 72382206 144764412