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13920495186 = 231331762119
BaseRepresentation
bin11001111011011100…
…11110011001010010
31022221010212102110210
430331232132121102
5212002121321221
610221152304550
71001651154033
oct147556363122
938833772423
1013920495186
1159a3836084
122845b42156
13140acc3000
14960adca8a
1556717b276
hex33db9e652

13920495186 has 64 divisors (see below), whose sum is σ = 31934649600. Its totient is φ = 4031209728.

The previous prime is 13920495181. The next prime is 13920495269. The reversal of 13920495186 is 68159402931.

It is not an unprimeable number, because it can be changed into a prime (13920495181) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 193035 + ... + 255153.

It is an arithmetic number, because the mean of its divisors is an integer number (498978900).

Almost surely, 213920495186 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13920495186, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15967324800).

13920495186 is an abundant number, since it is smaller than the sum of its proper divisors (18014154414).

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

13920495186 is a wasteful number, since it uses less digits than its factorization.

13920495186 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62180 (or 62154 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 48.

The spelling of 13920495186 in words is "thirteen billion, nine hundred twenty million, four hundred ninety-five thousand, one hundred eighty-six".

Divisors: 1 2 3 6 13 17 26 34 39 51 78 102 169 221 338 442 507 663 1014 1326 2197 2873 4394 5746 6591 8619 13182 17238 37349 62119 74698 112047 124238 186357 224094 372714 807547 1056023 1615094 2112046 2422641 3168069 4845282 6336138 10498111 13728299 20996222 27456598 31494333 41184897 62988666 82369794 136475443 178467887 272950886 356935774 409426329 535403661 818852658 1070807322 2320082531 4640165062 6960247593 13920495186