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20144230174 = 247146392
BaseRepresentation
bin10010110000101100…
…001000111100011110
31220222212220220212001
4102300230020330132
5312223410331144
613130520432514
71312123063015
oct226054107436
956885826761
1020144230174
1185a7990312
123aa231873a
131b90536533
14d9150ba7c
157cd75abd4
hex4b0b08f1e

20144230174 has 12 divisors (see below), whose sum is σ = 30861354384. Its totient is φ = 9857141372.

The previous prime is 20144230163. The next prime is 20144230181. The reversal of 20144230174 is 47103244102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1368747 + ... + 1383385.

It is an arithmetic number, because the mean of its divisors is an integer number (2571779532).

Almost surely, 220144230174 is an apocalyptic number.

20144230174 is a deficient number, since it is larger than the sum of its proper divisors (10717124210).

20144230174 is an frugal number, since it uses more digits than its factorization.

20144230174 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29327 (or 14688 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 28.

Adding to 20144230174 its reverse (47103244102), we get a palindrome (67247474276).

The spelling of 20144230174 in words is "twenty billion, one hundred forty-four million, two hundred thirty thousand, one hundred seventy-four".

Divisors: 1 2 47 94 14639 29278 688033 1376066 214300321 428600642 10072115087 20144230174