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20953070593 = 713317427533
BaseRepresentation
bin10011100000111001…
…100111110000000001
32000002020220021022121
4103200321213300001
5320402441224333
613343053004241
71341144106240
oct234071476001
960066807277
1020953070593
11898250a074
124089183681
131c8bc93230
14102aad8957
1582977c32d
hex4e0e67c01

20953070593 has 16 divisors (see below), whose sum is σ = 26620281856. Its totient is φ = 16043469120.

The previous prime is 20953070581. The next prime is 20953070617. The reversal of 20953070593 is 39507035902.

It is not a de Polignac number, because 20953070593 - 217 = 20952939521 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20953070533) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3710946 + ... + 3716587.

It is an arithmetic number, because the mean of its divisors is an integer number (1663767616).

Almost surely, 220953070593 is an apocalyptic number.

It is an amenable number.

20953070593 is a deficient number, since it is larger than the sum of its proper divisors (5667211263).

20953070593 is a wasteful number, since it uses less digits than its factorization.

20953070593 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7427584.

The product of its (nonzero) digits is 255150, while the sum is 43.

The spelling of 20953070593 in words is "twenty billion, nine hundred fifty-three million, seventy thousand, five hundred ninety-three".

Divisors: 1 7 13 31 91 217 403 2821 7427533 51992731 96557929 230253523 675905503 1611774661 2993295799 20953070593