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140020212 = 22343271357
BaseRepresentation
bin10000101100010…
…00100111110100
3100202110202121210
420112020213310
5241321121322
621521041420
73320103123
oct1026104764
9322422553
10140020212
1172046292
123aa86270
13230165c7
141484baba
15c45c70c
hex85889f4

140020212 has 24 divisors (see below), whose sum is σ = 334313056. Its totient is φ = 45587808.

The previous prime is 140020171. The next prime is 140020213. The reversal of 140020212 is 212020041.

140020212 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140020213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 135163 + ... + 136194.

Almost surely, 2140020212 is an apocalyptic number.

140020212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

140020212 is an abundant number, since it is smaller than the sum of its proper divisors (194292844).

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

140020212 is a wasteful number, since it uses less digits than its factorization.

140020212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 271407 (or 271405 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 140020212 is about 11833.0136482639. The cubic root of 140020212 is about 519.2743972424.

Adding to 140020212 its reverse (212020041), we get a palindrome (352040253).

It can be divided in two parts, 1400 and 20212, that added together give a palindrome (21612).

The spelling of 140020212 in words is "one hundred forty million, twenty thousand, two hundred twelve".

Divisors: 1 2 3 4 6 12 43 86 129 172 258 516 271357 542714 814071 1085428 1628142 3256284 11668351 23336702 35005053 46673404 70010106 140020212