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20848386920185 = 5111943914543523
BaseRepresentation
bin1001011110110001001001…
…01100100100111011111001
32201211002022221010110202101
410233120210230210323321
510213034444022421220
6112201341114103401
74251150314612026
oct457304454447371
981732287113671
1020848386920185
11670882999a070
12240868271ab61
13b82cc0a67a16
145210d29b654d
152624ab0d830a
hex12f624b24ef9

20848386920185 has 32 divisors (see below), whose sum is σ = 28735426667520. Its totient is φ = 14361164337600.

The previous prime is 20848386920131. The next prime is 20848386920203. The reversal of 20848386920185 is 58102968384802.

It is not a de Polignac number, because 20848386920185 - 29 = 20848386919673 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2316834 + ... + 6860356.

It is an arithmetic number, because the mean of its divisors is an integer number (897982083360).

Almost surely, 220848386920185 is an apocalyptic number.

It is an amenable number.

20848386920185 is a deficient number, since it is larger than the sum of its proper divisors (7887039747335).

20848386920185 is a wasteful number, since it uses less digits than its factorization.

20848386920185 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4547949.

The product of its (nonzero) digits is 53084160, while the sum is 64.

The spelling of 20848386920185 in words is "twenty trillion, eight hundred forty-eight billion, three hundred eighty-six million, nine hundred twenty thousand, one hundred eighty-five".

Divisors: 1 5 11 19 55 95 209 1045 4391 21955 48301 83429 241505 417145 917719 4543523 4588595 22717615 49978753 86326937 249893765 431634685 949596307 4747981535 19950609493 99753047465 219456704423 379061580367 1097283522115 1895307901835 4169677384037 20848386920185