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140117748 = 22323507673
BaseRepresentation
bin10000101101000…
…00011011110100
3100202122201102020
420112200123310
5241332231443
621523113140
73320660361
oct1026403364
9322581366
10140117748
11721025a1
123ab127b0
132304bb14
1414875468
15c47b583
hex85a06f4

140117748 has 24 divisors (see below), whose sum is σ = 341156928. Its totient is φ = 44675136.

The previous prime is 140117687. The next prime is 140117749. The reversal of 140117748 is 847711041.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140117749) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 253561 + ... + 254112.

It is an arithmetic number, because the mean of its divisors is an integer number (14214872).

Almost surely, 2140117748 is an apocalyptic number.

It is an amenable number.

140117748 is an abundant number, since it is smaller than the sum of its proper divisors (201039180).

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

140117748 is a wasteful number, since it uses less digits than its factorization.

140117748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 507703 (or 507701 counting only the distinct ones).

The product of its (nonzero) digits is 6272, while the sum is 33.

The square root of 140117748 is about 11837.1342815734. The cubic root of 140117748 is about 519.3949422009.

Adding to 140117748 its reverse (847711041), we get a palindrome (987828789).

The spelling of 140117748 in words is "one hundred forty million, one hundred seventeen thousand, seven hundred forty-eight".

Divisors: 1 2 3 4 6 12 23 46 69 92 138 276 507673 1015346 1523019 2030692 3046038 6092076 11676479 23352958 35029437 46705916 70058874 140117748