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140255412 = 223111318111
BaseRepresentation
bin10000101110000…
…10000010110100
3100202220201020220
420113002002310
5241401133122
621530054340
73322102623
oct1027020264
9322821226
10140255412
1172196a70
123ab7a3b0
132309968b
14148ad6ba
15c4a725c
hex85c20b4

140255412 has 48 divisors (see below), whose sum is σ = 359783424. Its totient is φ = 42172000.

The previous prime is 140255407. The next prime is 140255413. The reversal of 140255412 is 214552041.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140255413) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13237 + ... + 21347.

It is an arithmetic number, because the mean of its divisors is an integer number (7495488).

Almost surely, 2140255412 is an apocalyptic number.

140255412 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 140255412, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (179891712).

140255412 is an abundant number, since it is smaller than the sum of its proper divisors (219528012).

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

140255412 is a wasteful number, since it uses less digits than its factorization.

140255412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8260 (or 8258 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 24.

The square root of 140255412 is about 11842.9477749418. The cubic root of 140255412 is about 519.5649862829.

It can be divided in two parts, 140 and 255412, that added together give a palindrome (255552).

The spelling of 140255412 in words is "one hundred forty million, two hundred fifty-five thousand, four hundred twelve".

Divisors: 1 2 3 4 6 11 12 22 33 44 66 131 132 262 393 524 786 1441 1572 2882 4323 5764 8111 8646 16222 17292 24333 32444 48666 89221 97332 178442 267663 356884 535326 1062541 1070652 2125082 3187623 4250164 6375246 11687951 12750492 23375902 35063853 46751804 70127706 140255412