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141020140 = 2257051007
BaseRepresentation
bin10000110011111…
…00101111101100
3100211100120021011
420121330233230
5242100121030
621554315004
73331436302
oct1031745754
9324316234
10141020140
1172669578
123b288a64
13232a6791
1414a2c272
15c5a8b2a
hex867cbec

141020140 has 12 divisors (see below), whose sum is σ = 296142336. Its totient is φ = 56408048.

The previous prime is 141020137. The next prime is 141020141. The reversal of 141020140 is 41020141.

It is a self number, because there is not a number n which added to its sum of digits gives 141020140.

It is not an unprimeable number, because it can be changed into a prime (141020141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3525484 + ... + 3525523.

It is an arithmetic number, because the mean of its divisors is an integer number (24678528).

Almost surely, 2141020140 is an apocalyptic number.

141020140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

141020140 is an abundant number, since it is smaller than the sum of its proper divisors (155122196).

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

141020140 is a wasteful number, since it uses less digits than its factorization.

141020140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7051016 (or 7051014 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 141020140 is about 11875.1901037415. The cubic root of 141020140 is about 520.5075665386.

Adding to 141020140 its reverse (41020141), we get a palindrome (182040281).

Subtracting from 141020140 its reverse (41020141), we obtain a palindrome (99999999).

The spelling of 141020140 in words is "one hundred forty-one million, twenty thousand, one hundred forty".

Divisors: 1 2 4 5 10 20 7051007 14102014 28204028 35255035 70510070 141020140