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20454740341 = 75355134071
BaseRepresentation
bin10011000011001100…
…101001000101110101
31221210112012110201121
4103003030221011311
5313342403142331
613221412023541
71322613265330
oct230314510565
957715173647
1020454740341
118747193192
123b6a301bb1
131c0c974169
14dc0859617
157eab43c11
hex4c3329175

20454740341 has 8 divisors (see below), whose sum is σ = 23817919104. Its totient is φ = 17201829840.

The previous prime is 20454740309. The next prime is 20454740347. The reversal of 20454740341 is 14304745402.

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 20454740341 - 25 = 20454740309 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20454740297 and 20454740306.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20454740347) 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, 27566665 + ... + 27567406.

It is an arithmetic number, because the mean of its divisors is an integer number (2977239888).

Almost surely, 220454740341 is an apocalyptic number.

It is an amenable number.

20454740341 is a deficient number, since it is larger than the sum of its proper divisors (3363178763).

20454740341 is an equidigital number, since it uses as much as digits as its factorization.

20454740341 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55134131.

The product of its (nonzero) digits is 53760, while the sum is 34.

The spelling of 20454740341 in words is "twenty billion, four hundred fifty-four million, seven hundred forty thousand, three hundred forty-one".

Divisors: 1 7 53 371 55134071 385938497 2922105763 20454740341