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144347302 = 21143532879
BaseRepresentation
bin10001001101010…
…01000010100110
3101001121121021101
420212221002212
5243423103202
622153510314
73401634421
oct1046510246
9331547241
10144347302
11745312a0
124041239a
1323ba0008
14152569b8
15ca14887
hex89a90a6

144347302 has 32 divisors (see below), whose sum is σ = 246343680. Its totient is φ = 62855520.

The previous prime is 144347261. The next prime is 144347303. The reversal of 144347302 is 203743441.

It is a super-3 number, since 3×1443473023 (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144347303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48699 + ... + 51577.

It is an arithmetic number, because the mean of its divisors is an integer number (7698240).

Almost surely, 2144347302 is an apocalyptic number.

144347302 is a deficient number, since it is larger than the sum of its proper divisors (101996378).

144347302 is a wasteful number, since it uses less digits than its factorization.

144347302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2988.

The product of its (nonzero) digits is 8064, while the sum is 28.

The square root of 144347302 is about 12014.4622018632. The cubic root of 144347302 is about 524.5693241981.

It can be divided in two parts, 14434 and 7302, that added together give a triangular number (21736 = T208).

The spelling of 144347302 in words is "one hundred forty-four million, three hundred forty-seven thousand, three hundred two".

Divisors: 1 2 11 22 43 53 86 106 473 583 946 1166 2279 2879 4558 5758 25069 31669 50138 63338 123797 152587 247594 305174 1361767 1678457 2723534 3356914 6561241 13122482 72173651 144347302