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10001225140 = 2251393597563
BaseRepresentation
bin10010101000001111…
…01001010110110100
3221211000001212200221
421110013221112310
5130440303201030
64332224544124
7502561003534
oct112407512664
927730055627
1010001225140
114272481525
121b31482044
13c35028cca
146ac3a14c4
153d8050e7a
hex2541e95b4

10001225140 has 24 divisors (see below), whose sum is σ = 21153676320. Its totient is φ = 3971708448.

The previous prime is 10001225083. The next prime is 10001225189. The reversal of 10001225140 is 4152210001.

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, 1796002 + ... + 1801561.

It is an arithmetic number, because the mean of its divisors is an integer number (881403180).

Almost surely, 210001225140 is an apocalyptic number.

10001225140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10001225140 is an abundant number, since it is smaller than the sum of its proper divisors (11152451180).

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

10001225140 is a wasteful number, since it uses less digits than its factorization.

10001225140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3597711 (or 3597709 counting only the distinct ones).

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

Adding to 10001225140 its reverse (4152210001), we get a palindrome (14153435141).

The spelling of 10001225140 in words is "ten billion, one million, two hundred twenty-five thousand, one hundred forty".

Divisors: 1 2 4 5 10 20 139 278 556 695 1390 2780 3597563 7195126 14390252 17987815 35975630 71951260 500061257 1000122514 2000245028 2500306285 5000612570 10001225140