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140010234 = 237131491721
BaseRepresentation
bin10000101100001…
…10001011111010
3100202110020221020
420112012023322
5241320311414
621520523310
73320032050
oct1026061372
9322406836
10140010234
1172039841
123aa80536
1323011bc0
14148481d0
15c4597a9
hex85862fa

140010234 has 64 divisors (see below), whose sum is σ = 347155200. Its totient is φ = 36656640.

The previous prime is 140010209. The next prime is 140010239. The reversal of 140010234 is 432010041.

It is not an unprimeable number, because it can be changed into a prime (140010239) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 80494 + ... + 82214.

It is an arithmetic number, because the mean of its divisors is an integer number (5424300).

Almost surely, 2140010234 is an apocalyptic number.

140010234 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 140010234, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (173577600).

140010234 is an abundant number, since it is smaller than the sum of its proper divisors (207144966).

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

140010234 is a wasteful number, since it uses less digits than its factorization.

140010234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1895.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 140010234 is about 11832.5920237284. The cubic root of 140010234 is about 519.2620622541.

Adding to 140010234 its reverse (432010041), we get a palindrome (572020275).

The spelling of 140010234 in words is "one hundred forty million, ten thousand, two hundred thirty-four".

Divisors: 1 2 3 6 7 13 14 21 26 39 42 78 91 149 182 273 298 447 546 894 1043 1721 1937 2086 3129 3442 3874 5163 5811 6258 10326 11622 12047 13559 22373 24094 27118 36141 40677 44746 67119 72282 81354 134238 156611 256429 313222 469833 512858 769287 939666 1538574 1795003 3333577 3590006 5385009 6667154 10000731 10770018 20001462 23335039 46670078 70005117 140010234