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141084781 = 53672593
BaseRepresentation
bin10000110100011…
…00100001101101
3100211110211221021
420122030201231
5242104203111
621555534141
73332125615
oct1032144155
9324424837
10141084781
11727030a2
123b2ba351
13232ca026
1414a47a45
15c5bcd71
hex868c86d

141084781 has 12 divisors (see below), whose sum is σ = 146170332. Its totient is φ = 136126848.

The previous prime is 141084767. The next prime is 141084791. The reversal of 141084781 is 187480141.

It can be written as a sum of positive squares in 2 ways, for example, as 94381225 + 46703556 = 9715^2 + 6834^2 .

It is not a de Polignac number, because 141084781 - 227 = 6867053 is a prime.

It is a super-2 number, since 2×1410847812 = 39809830859635922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (141084701) 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, 237621 + ... + 238213.

It is an arithmetic number, because the mean of its divisors is an integer number (12180861).

Almost surely, 2141084781 is an apocalyptic number.

It is an amenable number.

141084781 is a deficient number, since it is larger than the sum of its proper divisors (5085551).

141084781 is an frugal number, since it uses more digits than its factorization.

141084781 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 780 (or 713 counting only the distinct ones).

The product of its (nonzero) digits is 7168, while the sum is 34.

The square root of 141084781 is about 11877.9114746659. The cubic root of 141084781 is about 520.5870847077.

The spelling of 141084781 in words is "one hundred forty-one million, eighty-four thousand, seven hundred eighty-one".

Divisors: 1 53 67 593 3551 4489 31429 39731 237917 2105743 2661977 141084781