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71838248170 = 25131943167481
BaseRepresentation
bin100001011100111100…
…1001010110011101010
320212102112100010022011
41002321321022303222
52134111042420140
653000234550134
75122135014523
oct1027171126352
9225375303264
1071838248170
1128514900137
1211b0a59834a
136a0b239a70
143696c0784a
151d06bc1cea
hex10b9e4acea

71838248170 has 64 divisors (see below), whose sum is σ = 146927208960. Its totient is φ = 25070169600.

The previous prime is 71838248161. The next prime is 71838248213. The reversal of 71838248170 is 7184283817.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1030830 + ... + 1098310.

It is an arithmetic number, because the mean of its divisors is an integer number (2295737640).

Almost surely, 271838248170 is an apocalyptic number.

71838248170 is an abundant number, since it is smaller than the sum of its proper divisors (75088960790).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

71838248170 is a wasteful number, since it uses less digits than its factorization.

71838248170 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67951.

The product of its (nonzero) digits is 602112, while the sum is 49.

The spelling of 71838248170 in words is "seventy-one billion, eight hundred thirty-eight million, two hundred forty-eight thousand, one hundred seventy".

Divisors: 1 2 5 10 13 19 26 38 65 95 130 190 247 431 494 862 1235 2155 2470 4310 5603 8189 11206 16378 28015 40945 56030 67481 81890 106457 134962 212914 337405 532285 674810 877253 1064570 1282139 1754506 2564278 4386265 6410695 8772530 12821390 16667807 29084311 33335614 58168622 83339035 145421555 166678070 290843110 378096043 552601909 756192086 1105203818 1890480215 2763009545 3780960430 5526019090 7183824817 14367649634 35919124085 71838248170