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145104444 = 223219212141
BaseRepresentation
bin10001010011000…
…01111000111100
3101010001001212200
420221201320330
5244121320234
622222031500
73411240012
oct1051417074
9333031780
10145104444
11749a9131
1240718590
13240a6824
14153b28b2
15cb13d99
hex8a61e3c

145104444 has 36 divisors (see below), whose sum is σ = 386098440. Its totient is φ = 45822240.

The previous prime is 145104431. The next prime is 145104457. The reversal of 145104444 is 444401541.

It is an interprime number because it is at equal distance from previous prime (145104431) and next prime (145104457).

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 105387 + ... + 106754.

Almost surely, 2145104444 is an apocalyptic number.

It is an amenable number.

145104444 is an abundant number, since it is smaller than the sum of its proper divisors (240993996).

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

145104444 is a wasteful number, since it uses less digits than its factorization.

145104444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212170 (or 212165 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 27.

The square root of 145104444 is about 12045.9305991692. The cubic root of 145104444 is about 525.4848962239.

Adding to 145104444 its reverse (444401541), we get a palindrome (589505985).

The spelling of 145104444 in words is "one hundred forty-five million, one hundred four thousand, four hundred forty-four".

Divisors: 1 2 3 4 6 9 12 18 19 36 38 57 76 114 171 228 342 684 212141 424282 636423 848564 1272846 1909269 2545692 3818538 4030679 7637076 8061358 12092037 16122716 24184074 36276111 48368148 72552222 145104444