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144602031 = 3737186103
BaseRepresentation
bin10001001111001…
…11001110101111
3101002002112200210
420213213032233
5244004231111
622203153503
73404045160
oct1047471657
9332075623
10144602031
1174695712
1240515893
1323c5bc42
14152c1767
15ca650a6
hex89e73af

144602031 has 16 divisors (see below), whose sum is σ = 226302464. Its totient is φ = 80396064.

The previous prime is 144602023. The next prime is 144602057. The reversal of 144602031 is 130206441.

It is not a de Polignac number, because 144602031 - 23 = 144602023 is a prime.

It is a super-2 number, since 2×1446020312 = 41819494738649922, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 144601989 and 144602007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144602021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 92275 + ... + 93828.

It is an arithmetic number, because the mean of its divisors is an integer number (14143904).

Almost surely, 2144602031 is an apocalyptic number.

144602031 is a deficient number, since it is larger than the sum of its proper divisors (81700433).

144602031 is a wasteful number, since it uses less digits than its factorization.

144602031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186150.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 144602031 is about 12025.0584613964. The cubic root of 144602031 is about 524.8777111999.

Adding to 144602031 its reverse (130206441), we get a palindrome (274808472).

The spelling of 144602031 in words is "one hundred forty-four million, six hundred two thousand, thirty-one".

Divisors: 1 3 7 21 37 111 259 777 186103 558309 1302721 3908163 6885811 20657433 48200677 144602031