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10820245742 = 219284743309
BaseRepresentation
bin10100001001110111…
…11101100011101110
31000221002012102202022
422010323331203232
5134124440330432
64545403230142
7532064366645
oct120473754356
930832172668
1010820245742
114652823859
12211b818352
13103590b597
1474907c35c
15434dd3b12
hex284efd8ee

10820245742 has 8 divisors (see below), whose sum is σ = 17084598600. Its totient is φ = 5125379544.

The previous prime is 10820245739. The next prime is 10820245747. The reversal of 10820245742 is 24754202801.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10820245747) 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, 142371617 + ... + 142371692.

It is an arithmetic number, because the mean of its divisors is an integer number (2135574825).

Almost surely, 210820245742 is an apocalyptic number.

10820245742 is a deficient number, since it is larger than the sum of its proper divisors (6264352858).

10820245742 is a wasteful number, since it uses less digits than its factorization.

10820245742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 284743330.

The product of its (nonzero) digits is 35840, while the sum is 35.

The spelling of 10820245742 in words is "ten billion, eight hundred twenty million, two hundred forty-five thousand, seven hundred forty-two".

Divisors: 1 2 19 38 284743309 569486618 5410122871 10820245742