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141053021 = 213166191
BaseRepresentation
bin10000110100001…
…00110001011101
3100211102020100222
420122010301131
5242102144041
621555131125
73331634204
oct1032046135
9324366328
10141053021
117269124a
123b2a3aa5
13232b8735
1414a3a23b
15c5b374b
hex8684c5d

141053021 has 4 divisors (see below), whose sum is σ = 141121344. Its totient is φ = 140984700.

The previous prime is 141052993. The next prime is 141053047. The reversal of 141053021 is 120350141.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 120350141 = 211356957.

It is a cyclic number.

It is not a de Polignac number, because 141053021 - 26 = 141052957 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (141053621) 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, 30965 + ... + 35226.

It is an arithmetic number, because the mean of its divisors is an integer number (35280336).

Almost surely, 2141053021 is an apocalyptic number.

It is an amenable number.

141053021 is a deficient number, since it is larger than the sum of its proper divisors (68323).

141053021 is an equidigital number, since it uses as much as digits as its factorization.

141053021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68322.

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 141053021 is about 11876.5744640448. The cubic root of 141053021 is about 520.5480181584.

The spelling of 141053021 in words is "one hundred forty-one million, fifty-three thousand, twenty-one".

Divisors: 1 2131 66191 141053021