Search a number
-
+
140881360 = 2453156807
BaseRepresentation
bin10000110010110…
…10110111010000
3100211002111220011
420121122313100
5242031200420
621551324304
73330320554
oct1031326720
9324074804
10140881360
1172584284
123b220694
1323258569
14149d3864
15c57c95a
hex865add0

140881360 has 40 divisors (see below), whose sum is σ = 338121216. Its totient is φ = 54533760.

The previous prime is 140881357. The next prime is 140881361. The reversal of 140881360 is 63188041.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140881361) 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 7 ways as a sum of consecutive naturals, for example, 25924 + ... + 30883.

Almost surely, 2140881360 is an apocalyptic number.

140881360 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

140881360 is an abundant number, since it is smaller than the sum of its proper divisors (197239856).

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

140881360 is a wasteful number, since it uses less digits than its factorization.

140881360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56851 (or 56845 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 31.

The square root of 140881360 is about 11869.3453905428. The cubic root of 140881360 is about 520.3367641052.

The spelling of 140881360 in words is "one hundred forty million, eight hundred eighty-one thousand, three hundred sixty".

Divisors: 1 2 4 5 8 10 16 20 31 40 62 80 124 155 248 310 496 620 1240 2480 56807 113614 227228 284035 454456 568070 908912 1136140 1761017 2272280 3522034 4544560 7044068 8805085 14088136 17610170 28176272 35220340 70440680 140881360