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144212031898 = 211192237012207
BaseRepresentation
bin1000011001001110110…
…1001111100110011010
3111210020101101021021121
42012103231033212122
54330321240010043
6150130004155454
713263465021454
oct2062355174632
9453211337247
10144212031898
1156183a29040
1223b48398b8a
13107a33c136c
146da0bb72d4
153b408caded
hex2193b4f99a

144212031898 has 64 divisors (see below), whose sum is σ = 249986580480. Its totient is φ = 61706232000.

The previous prime is 144212031857. The next prime is 144212031911. The reversal of 144212031898 is 898130212441.

It is a super-2 number, since 2×1442120318982 (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 65341911 + ... + 65344117.

It is an arithmetic number, because the mean of its divisors is an integer number (3906040320).

Almost surely, 2144212031898 is an apocalyptic number.

144212031898 is a deficient number, since it is larger than the sum of its proper divisors (105774548582).

144212031898 is a wasteful number, since it uses less digits than its factorization.

144212031898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3163.

The product of its (nonzero) digits is 110592, while the sum is 43.

The spelling of 144212031898 in words is "one hundred forty-four billion, two hundred twelve million, thirty-one thousand, eight hundred ninety-eight".

Divisors: 1 2 11 19 22 38 209 223 418 446 701 1402 2207 2453 4237 4414 4906 7711 8474 13319 15422 24277 26638 41933 46607 48554 83866 93214 146509 156323 293018 312646 461263 492161 922526 984322 1547107 1719553 2970137 3094214 3439106 5413771 5940274 9351059 10827542 17018177 18702118 29395033 32671507 34036354 58790066 65343014 102861649 205723298 323345363 345004861 646690726 690009722 3795053471 6555092359 7590106942 13110184718 72106015949 144212031898