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144235630 = 25711217029
BaseRepresentation
bin10001001100011…
…01110001101110
3101001101221002101
420212031301232
5243411020010
622151245314
73400661020
oct1046156156
9331357071
10144235630
1174465400
124037983a
1323b61236
1415228010
15c9e173a
hex898dc6e

144235630 has 48 divisors (see below), whose sum is σ = 326158560. Its totient is φ = 44953920.

The previous prime is 144235613. The next prime is 144235639. The reversal of 144235630 is 36532441.

144235630 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×1442356302 = 41607833922993800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144235639) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 45 + ... + 16984.

It is an arithmetic number, because the mean of its divisors is an integer number (6794970).

Almost surely, 2144235630 is an apocalyptic number.

144235630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

144235630 is an abundant number, since it is smaller than the sum of its proper divisors (181922930).

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

144235630 is a wasteful number, since it uses less digits than its factorization.

144235630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17065 (or 17054 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 28.

The square root of 144235630 is about 12009.8139036373. The cubic root of 144235630 is about 524.4340143870.

The spelling of 144235630 in words is "one hundred forty-four million, two hundred thirty-five thousand, six hundred thirty".

Divisors: 1 2 5 7 10 11 14 22 35 55 70 77 110 121 154 242 385 605 770 847 1210 1694 4235 8470 17029 34058 85145 119203 170290 187319 238406 374638 596015 936595 1192030 1311233 1873190 2060509 2622466 4121018 6556165 10302545 13112330 14423563 20605090 28847126 72117815 144235630