Search a number
-
+
140190860 = 2257009543
BaseRepresentation
bin10000101101100…
…10010010001100
3100202210102201002
420112302102030
5241342101420
621524435432
73321413465
oct1026622214
9322712632
10140190860
1172152517
123ab48b78
1323076194
1414893d6c
15c493075
hex85b248c

140190860 has 12 divisors (see below), whose sum is σ = 294400848. Its totient is φ = 56076336.

The previous prime is 140190859. The next prime is 140190877. The reversal of 140190860 is 68091041.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3504752 + ... + 3504791.

It is an arithmetic number, because the mean of its divisors is an integer number (24533404).

Almost surely, 2140190860 is an apocalyptic number.

140190860 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

140190860 is an abundant number, since it is smaller than the sum of its proper divisors (154209988).

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

140190860 is a wasteful number, since it uses less digits than its factorization.

140190860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7009552 (or 7009550 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 29.

The square root of 140190860 is about 11840.2221262948. Note that the first 3 decimals coincide. The cubic root of 140190860 is about 519.4852648062.

The spelling of 140190860 in words is "one hundred forty million, one hundred ninety thousand, eight hundred sixty".

Divisors: 1 2 4 5 10 20 7009543 14019086 28038172 35047715 70095430 140190860