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641062141 = 2342436569
BaseRepresentation
bin100110001101011…
…101010011111101
31122200021022221021
4212031131103331
52303102442031
6143340104141
721612636556
oct4615352375
91580238837
10641062141
112a9954525
1215a835051
13a2a74a15
14611d532d
153b42e511
hex2635d4fd

641062141 has 8 divisors (see below), whose sum is σ = 669193920. Its totient is φ = 612952032.

The previous prime is 641062087. The next prime is 641062207. The reversal of 641062141 is 141260146.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 641062141 - 213 = 641053949 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (641060141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 94305 + ... + 100873.

It is an arithmetic number, because the mean of its divisors is an integer number (83649240).

Almost surely, 2641062141 is an apocalyptic number.

It is an amenable number.

641062141 is a deficient number, since it is larger than the sum of its proper divisors (28131779).

641062141 is a wasteful number, since it uses less digits than its factorization.

641062141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10835.

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 641062141 is about 25319.2049835693. The cubic root of 641062141 is about 862.2503444900.

The spelling of 641062141 in words is "six hundred forty-one million, sixty-two thousand, one hundred forty-one".

Divisors: 1 23 4243 6569 97589 151087 27872267 641062141