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20256315082 = 2171514798237
BaseRepresentation
bin10010110111010111…
…101101011011001010
31221021200211102102221
4102313113231123022
5312441104040312
613150003044254
71314653560123
oct226727553312
957250742387
1020256315082
118655186373
123b1397068a
131baa81b873
14da236704a
157d84eb207
hex4b75ed6ca

20256315082 has 32 divisors (see below), whose sum is σ = 32456401920. Its totient is φ = 9448339200.

The previous prime is 20256315061. The next prime is 20256315091. The reversal of 20256315082 is 28051365202.

It is a super-4 number, since 4×202563150824 (a number of 42 digits) contains 4444 as substring.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2455068 + ... + 2463304.

It is an arithmetic number, because the mean of its divisors is an integer number (1014262560).

Almost surely, 220256315082 is an apocalyptic number.

20256315082 is a deficient number, since it is larger than the sum of its proper divisors (12200086838).

20256315082 is a wasteful number, since it uses less digits than its factorization.

20256315082 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8886.

The product of its (nonzero) digits is 28800, while the sum is 34.

The spelling of 20256315082 in words is "twenty billion, two hundred fifty-six million, three hundred fifteen thousand, eighty-two".

Divisors: 1 2 17 34 151 302 479 958 2567 5134 8143 8237 16286 16474 72329 140029 144658 280058 1229593 1243787 2459186 2487574 3945523 7891046 21144379 42288758 67073891 134147782 595773973 1191547946 10128157541 20256315082