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3144240423 = 3617534787
BaseRepresentation
bin1011101101101001…
…0100110100100111
322010010102222000000
42323122110310213
522414411143143
61235555552343
7140626413462
oct27332246447
98103388000
103144240423
111373929405
12738bbb6b3
133b15479bc
1421b8322d9
15136086bd3
hexbb694d27

3144240423 has 56 divisors (see below), whose sum is σ = 5086752048. Its totient is φ = 1935228672.

The previous prime is 3144240419. The next prime is 3144240439. The reversal of 3144240423 is 3240424413.

It is a happy number.

It is not a de Polignac number, because 3144240423 - 22 = 3144240419 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3144240443) by changing a digit.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 654436 + ... + 659222.

It is an arithmetic number, because the mean of its divisors is an integer number (90834858).

Almost surely, 23144240423 is an apocalyptic number.

3144240423 is a deficient number, since it is larger than the sum of its proper divisors (1942511625).

3144240423 is an equidigital number, since it uses as much as digits as its factorization.

3144240423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4875 (or 4860 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 27.

The square root of 3144240423 is about 56073.5269356227. The cubic root of 3144240423 is about 1465.0032301606.

Adding to 3144240423 its reverse (3240424413), we get a palindrome (6384664836).

The spelling of 3144240423 in words is "three billion, one hundred forty-four million, two hundred forty thousand, four hundred twenty-three".

Divisors: 1 3 9 17 27 51 53 81 153 159 243 459 477 729 901 1377 1431 2703 4131 4293 4787 8109 12393 12879 14361 24327 38637 43083 72981 81379 129249 218943 244137 253711 387747 656829 732411 761133 1163241 2197233 2283399 3489723 4313087 6591699 6850197 12939261 19775097 20550591 38817783 59325291 61651773 116453349 184955319 349360047 1048080141 3144240423