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144703908 = 22343114407
BaseRepresentation
bin10001010000000…
…00000110100100
3101002021201110000
420220000012210
5244021011113
622205301300
73404651166
oct1050000644
9332251400
10144703908
1174755208
1240564830
1323c9641b
141530a936
15ca85373
hex8a001a4

144703908 has 60 divisors (see below), whose sum is σ = 390514432. Its totient is φ = 46675440.

The previous prime is 144703907. The next prime is 144703913. The reversal of 144703908 is 809307441.

It is a happy number.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (144703903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 2841 + ... + 17247.

Almost surely, 2144703908 is an apocalyptic number.

144703908 is a gapful number since it is divisible by the number (18) 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 144703908, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (195257216).

144703908 is an abundant number, since it is smaller than the sum of its proper divisors (245810524).

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

144703908 is a wasteful number, since it uses less digits than its factorization.

144703908 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14454 (or 14443 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 144703908 is about 12029.2937448547. The cubic root of 144703908 is about 525.0009469371. Note that the first 3 decimals are identical.

The spelling of 144703908 in words is "one hundred forty-four million, seven hundred three thousand, nine hundred eight".

Divisors: 1 2 3 4 6 9 12 18 27 31 36 54 62 81 93 108 124 162 186 279 324 372 558 837 1116 1674 2511 3348 5022 10044 14407 28814 43221 57628 86442 129663 172884 259326 388989 446617 518652 777978 893234 1166967 1339851 1555956 1786468 2333934 2679702 4019553 4667868 5359404 8039106 12058659 16078212 24117318 36175977 48234636 72351954 144703908