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28703206831364 = 22131075158735951
BaseRepresentation
bin1101000011010111111000…
…11100100111010100000100
310202121222222211120012212222
412201223330130213110010
512230233131422100424
6141014023213031512
76021511136336222
oct641537434472404
9122558884505788
1028703206831364
119166a63a6881a
123276a59a85598
131302915835b80
14713357a87b12
1534b9826a0e5e
hex1a1afc727504

28703206831364 has 24 divisors (see below), whose sum is σ = 54600061315968. Its totient is φ = 13123824256800.

The previous prime is 28703206831357. The next prime is 28703206831379. The reversal of 28703206831364 is 46313860230782.

It is a happy 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, 2579362412 + ... + 2579373539.

It is an arithmetic number, because the mean of its divisors is an integer number (2275002554832).

Almost surely, 228703206831364 is an apocalyptic number.

It is an amenable number.

28703206831364 is a deficient number, since it is larger than the sum of its proper divisors (25896854484604).

28703206831364 is a wasteful number, since it uses less digits than its factorization.

28703206831364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5158736075 (or 5158736073 counting only the distinct ones).

The product of its (nonzero) digits is 6967296, while the sum is 53.

The spelling of 28703206831364 in words is "twenty-eight trillion, seven hundred three billion, two hundred six million, eight hundred thirty-one thousand, three hundred sixty-four".

Divisors: 1 2 4 13 26 52 107 214 428 1391 2782 5564 5158735951 10317471902 20634943804 67063567363 134127134726 268254269452 551984746757 1103969493514 2207938987028 7175801707841 14351603415682 28703206831364