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140892105 = 3519149177
BaseRepresentation
bin10000110010111…
…01011111001001
3100211010001122010
420121131133021
5242032021410
621551450133
73330364104
oct1031353711
9324101563
10140892105
1172591362
123b226949
1323260413
14149d773b
15c580c20
hex865d7c9

140892105 has 16 divisors (see below), whose sum is σ = 226612224. Its totient is φ = 74747520.

The previous prime is 140892097. The next prime is 140892109. The reversal of 140892105 is 501298041.

It is a happy number.

It is not a de Polignac number, because 140892105 - 23 = 140892097 is a prime.

It is not an unprimeable number, because it can be changed into a prime (140892109) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21724 + ... + 27453.

It is an arithmetic number, because the mean of its divisors is an integer number (14163264).

Almost surely, 2140892105 is an apocalyptic number.

140892105 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

140892105 is a deficient number, since it is larger than the sum of its proper divisors (85720119).

140892105 is a wasteful number, since it uses less digits than its factorization.

140892105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49376.

The product of its (nonzero) digits is 2880, while the sum is 30.

The square root of 140892105 is about 11869.7980185006. The cubic root of 140892105 is about 520.3499924376.

The spelling of 140892105 in words is "one hundred forty million, eight hundred ninety-two thousand, one hundred five".

Divisors: 1 3 5 15 191 573 955 2865 49177 147531 245885 737655 9392807 28178421 46964035 140892105