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140751252 = 223253711039
BaseRepresentation
bin10000110001110…
…11000110010100
3100210211220102100
420120323012110
5242013020002
621544442100
73326236335
oct1030730624
9323756370
10140751252
11724a5554
123b179330
1323211285
141499c28c
15c55411c
hex863b194

140751252 has 72 divisors (see below), whose sum is σ = 367960320. Its totient is φ = 45339840.

The previous prime is 140751241. The next prime is 140751257. The reversal of 140751252 is 252157041.

140751252 is a `hidden beast` number, since 1 + 407 + 5 + 1 + 252 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140751257) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 134949 + ... + 135987.

It is an arithmetic number, because the mean of its divisors is an integer number (5110560).

Almost surely, 2140751252 is an apocalyptic number.

140751252 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 140751252, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (183980160).

140751252 is an abundant number, since it is smaller than the sum of its proper divisors (227209068).

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

140751252 is a wasteful number, since it uses less digits than its factorization.

140751252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1173 (or 1168 counting only the distinct ones).

The product of its (nonzero) digits is 2800, while the sum is 27.

The square root of 140751252 is about 11863.8632830963. The cubic root of 140751252 is about 520.1765327650.

The spelling of 140751252 in words is "one hundred forty million, seven hundred fifty-one thousand, two hundred fifty-two".

Divisors: 1 2 3 4 6 9 12 18 36 53 71 106 142 159 212 213 284 318 426 477 636 639 852 954 1039 1278 1908 2078 2556 3117 3763 4156 6234 7526 9351 11289 12468 15052 18702 22578 33867 37404 45156 55067 67734 73769 110134 135468 147538 165201 220268 221307 295076 330402 442614 495603 660804 663921 885228 991206 1327842 1982412 2655684 3909757 7819514 11729271 15639028 23458542 35187813 46917084 70375626 140751252