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20345701 = 33760373
BaseRepresentation
bin100110110011…
…1001101100101
31102021200001111
41031213031211
520202030301
62004025021
7334635625
oct115471545
942250044
1020345701
1110537032
126992171
1342a489c
1429b8885
151bbd551
hex1367365

20345701 has 4 divisors (see below), whose sum is σ = 20406412. Its totient is φ = 20284992.

The previous prime is 20345687. The next prime is 20345723. The reversal of 20345701 is 10754302.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 9156676 + 11189025 = 3026^2 + 3345^2 .

It is a cyclic number.

It is not a de Polignac number, because 20345701 - 25 = 20345669 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 (20345761) 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, 29850 + ... + 30523.

It is an arithmetic number, because the mean of its divisors is an integer number (5101603).

Almost surely, 220345701 is an apocalyptic number.

It is an amenable number.

20345701 is a deficient number, since it is larger than the sum of its proper divisors (60711).

20345701 is an equidigital number, since it uses as much as digits as its factorization.

20345701 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60710.

The product of its (nonzero) digits is 840, while the sum is 22.

The square root of 20345701 is about 4510.6209106951. The cubic root of 20345701 is about 272.9967976296.

The spelling of 20345701 in words is "twenty million, three hundred forty-five thousand, seven hundred one".

Divisors: 1 337 60373 20345701