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140371470 = 23251559683
BaseRepresentation
bin10000101110111…
…10011000001110
3100210010121110100
420113132120032
5241413341340
621532351530
73323065161
oct1027363016
9323117410
10140371470
1172266188
123b0155a6
132310a455
14148ddad8
15c4cb830
hex85de60e

140371470 has 24 divisors (see below), whose sum is σ = 364966056. Its totient is φ = 37432368.

The previous prime is 140371453. The next prime is 140371471. The reversal of 140371470 is 74173041.

140371470 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140371471) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 779752 + ... + 779931.

It is an arithmetic number, because the mean of its divisors is an integer number (15206919).

Almost surely, 2140371470 is an apocalyptic number.

140371470 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

140371470 is an abundant number, since it is smaller than the sum of its proper divisors (224594586).

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

140371470 is a wasteful number, since it uses less digits than its factorization.

140371470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1559696 (or 1559693 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 27.

The square root of 140371470 is about 11847.8466397907. The cubic root of 140371470 is about 519.7082559740.

The spelling of 140371470 in words is "one hundred forty million, three hundred seventy-one thousand, four hundred seventy".

Divisors: 1 2 3 5 6 9 10 15 18 30 45 90 1559683 3119366 4679049 7798415 9358098 14037147 15596830 23395245 28074294 46790490 70185735 140371470