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13401020142 = 232678321613
BaseRepresentation
bin11000111101100001…
…10101011011101110
31021120221101100200100
430132300311123232
5204421130121032
610053434211530
7653042535366
oct143660653356
937527340610
1013401020142
115757587864
12271bb83ba6
1313574ac723
14911b179a6
1553676797c
hex31ec356ee

13401020142 has 72 divisors (see below), whose sum is σ = 29846727144. Its totient is φ = 4344623712.

The previous prime is 13401020123. The next prime is 13401020177. The reversal of 13401020142 is 24102010431.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 8307328 + ... + 8308940.

It is an arithmetic number, because the mean of its divisors is an integer number (414537877).

Almost surely, 213401020142 is an apocalyptic number.

13401020142 is an abundant number, since it is smaller than the sum of its proper divisors (16445707002).

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

13401020142 is a wasteful number, since it uses less digits than its factorization.

13401020142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1854 (or 1768 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 13401020142 its reverse (24102010431), we get a palindrome (37503030573).

The spelling of 13401020142 in words is "thirteen billion, four hundred one million, twenty thousand, one hundred forty-two".

Divisors: 1 2 3 6 9 18 67 83 134 166 201 249 402 498 603 747 1206 1494 1613 3226 4839 5561 6889 9678 11122 13778 14517 16683 20667 29034 33366 41334 50049 62001 100098 108071 124002 133879 216142 267758 324213 401637 461563 648426 803274 923126 972639 1204911 1384689 1945278 2409822 2769378 4154067 8308134 8969893 11111957 17939786 22223914 26909679 33335871 53819358 66671742 80729037 100007613 161458074 200015226 744501119 1489002238 2233503357 4467006714 6700510071 13401020142