Search a number
-
+
140310440 = 23519353523
BaseRepresentation
bin10000101110011…
…11011110101000
3100210000111201222
420113033132220
5241404413230
621531201212
73322422224
oct1027173650
9323014658
10140310440
1172224346
123aba6208
13230b873a
14148c5784
15c4b86e5
hex85cf7a8

140310440 has 64 divisors (see below), whose sum is σ = 333892800. Its totient is φ = 52918272.

The previous prime is 140310427. The next prime is 140310473. The reversal of 140310440 is 44013041.

Adding to 140310440 its reverse (44013041), we get a palindrome (184323481).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 268019 + ... + 268541.

It is an arithmetic number, because the mean of its divisors is an integer number (5217075).

Almost surely, 2140310440 is an apocalyptic number.

140310440 is a gapful number since it is divisible by the number (10) 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 140310440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (166946400).

140310440 is an abundant number, since it is smaller than the sum of its proper divisors (193582360).

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

140310440 is a wasteful number, since it uses less digits than its factorization.

140310440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 906 (or 902 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 140310440 is about 11845.2707862674. The cubic root of 140310440 is about 519.6329263440.

The spelling of 140310440 in words is "one hundred forty million, three hundred ten thousand, four hundred forty".

Divisors: 1 2 4 5 8 10 19 20 38 40 76 95 152 190 353 380 523 706 760 1046 1412 1765 2092 2615 2824 3530 4184 5230 6707 7060 9937 10460 13414 14120 19874 20920 26828 33535 39748 49685 53656 67070 79496 99370 134140 184619 198740 268280 369238 397480 738476 923095 1476952 1846190 3507761 3692380 7015522 7384760 14031044 17538805 28062088 35077610 70155220 140310440