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18580398472102 = 2171947611962271
BaseRepresentation
bin1000011100110000101100…
…00011001111101110100110
32102210021020220201220220011
410032120112003033232212
54413410124002101402
6103303414530400434
73625250411104105
oct416302603175646
972707226656804
1018580398472102
115a139a2602815
122101009a3011a
13a4a17c72a25c
1448342065403c
152234bae6aed7
hex10e6160cfba6

18580398472102 has 32 divisors (see below), whose sum is σ = 31724124180480. Its totient is φ = 8107276152960.

The previous prime is 18580398472037. The next prime is 18580398472109. The reversal of 18580398472102 is 20127489308581.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18580398472109) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 305950774 + ... + 306011497.

It is an arithmetic number, because the mean of its divisors is an integer number (991378880640).

Almost surely, 218580398472102 is an apocalyptic number.

18580398472102 is a deficient number, since it is larger than the sum of its proper divisors (13143725708378).

18580398472102 is a wasteful number, since it uses less digits than its factorization.

18580398472102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 611962356.

The product of its (nonzero) digits is 7741440, while the sum is 58.

The spelling of 18580398472102 in words is "eighteen trillion, five hundred eighty billion, three hundred ninety-eight million, four hundred seventy-two thousand, one hundred two".

Divisors: 1 2 17 19 34 38 47 94 323 646 799 893 1598 1786 15181 30362 611962271 1223924542 10403358607 11627283149 20806717214 23254566298 28762226737 57524453474 197663813533 395327627066 488957854529 546482308003 977915709058 1092964616006 9290199236051 18580398472102