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10400105140 = 2255189100213
BaseRepresentation
bin10011010111110010…
…10000001010110100
3222211210122002012021
421223321100022310
5132244411331030
64435554202524
7515503302145
oct115371201264
928753562167
1010400105140
114457651a17
122022b83444
13c99867889
14709353acc
1540d09297a
hex26be502b4

10400105140 has 24 divisors (see below), whose sum is σ = 21844647720. Its totient is φ = 4159198848.

The previous prime is 10400105137. The next prime is 10400105161. The reversal of 10400105140 is 4150100401.

It can be written as a sum of positive squares in 4 ways, for example, as 383298084 + 10016807056 = 19578^2 + 100084^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53674 + ... + 153886.

It is an arithmetic number, because the mean of its divisors is an integer number (910193655).

Almost surely, 210400105140 is an apocalyptic number.

10400105140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10400105140 is an abundant number, since it is smaller than the sum of its proper divisors (11444542580).

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

10400105140 is a wasteful number, since it uses less digits than its factorization.

10400105140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105411 (or 105409 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 16.

Adding to 10400105140 its reverse (4150100401), we get a palindrome (14550205541).

The spelling of 10400105140 in words is "ten billion, four hundred million, one hundred five thousand, one hundred forty".

Divisors: 1 2 4 5 10 20 5189 10378 20756 25945 51890 100213 103780 200426 400852 501065 1002130 2004260 520005257 1040010514 2080021028 2600026285 5200052570 10400105140