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20453621095 = 55521740939
BaseRepresentation
bin10011000011001000…
…010111110101100111
31221210110002121102001
4103003020113311213
5313342111333340
613221332030131
71322600624245
oct230310276547
957713077361
1020453621095
118746599296
123b69a62347
131c0c67189b
14dc0647795
157ea9c229a
hex4c3217d67

20453621095 has 8 divisors (see below), whose sum is σ = 24548824080. Its totient is φ = 16359911040.

The previous prime is 20453621057. The next prime is 20453621107. The reversal of 20453621095 is 59012635402.

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

It is not a de Polignac number, because 20453621095 - 233 = 11863686503 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 342865 + ... + 398074.

It is an arithmetic number, because the mean of its divisors is an integer number (3068603010).

Almost surely, 220453621095 is an apocalyptic number.

20453621095 is a deficient number, since it is larger than the sum of its proper divisors (4095202985).

20453621095 is an equidigital number, since it uses as much as digits as its factorization.

20453621095 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 746465.

The product of its (nonzero) digits is 64800, while the sum is 37.

The spelling of 20453621095 in words is "twenty billion, four hundred fifty-three million, six hundred twenty-one thousand, ninety-five".

Divisors: 1 5 5521 27605 740939 3704695 4090724219 20453621095