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144688934 = 2136618419
BaseRepresentation
bin10001001111111…
…00011100100110
3101002020221220102
420213330130212
5244020021214
622205104102
73404556425
oct1047743446
9332227812
10144688934
1174744a35
1240558032
1323c8c670
14153052bc
15ca80bde
hex89fc726

144688934 has 16 divisors (see below), whose sum is σ = 234109680. Its totient is φ = 66670560.

The previous prime is 144688919. The next prime is 144688949. The reversal of 144688934 is 439886441.

It is an interprime number because it is at equal distance from previous prime (144688919) and next prime (144688949).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12977 + ... + 21395.

It is an arithmetic number, because the mean of its divisors is an integer number (14631855).

Almost surely, 2144688934 is an apocalyptic number.

144688934 is a deficient number, since it is larger than the sum of its proper divisors (89420746).

144688934 is a wasteful number, since it uses less digits than its factorization.

144688934 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9095.

The product of its digits is 663552, while the sum is 47.

The square root of 144688934 is about 12028.6713314480. The cubic root of 144688934 is about 524.9828372318.

The spelling of 144688934 in words is "one hundred forty-four million, six hundred eighty-eight thousand, nine hundred thirty-four".

Divisors: 1 2 13 26 661 1322 8419 8593 16838 17186 109447 218894 5564959 11129918 72344467 144688934