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10211312140 = 2251721766663
BaseRepresentation
bin10011000001010010…
…00100001000001100
3222100122101101212221
421200221010020030
5131403043442030
64405131505124
7511021502221
oct114051041014
928318341787
1010211312140
114370023a47
121b8b8b81a4
13c69705643
146cc24b948
153eb6ede7a
hex260a4420c

10211312140 has 36 divisors (see below), whose sum is σ = 22779365616. Its totient is φ = 3844256512.

The previous prime is 10211312117. The next prime is 10211312141. The reversal of 10211312140 is 4121311201.

It is a super-2 number, since 2×102113121402 (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (10211312141) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 877552 + ... + 889111.

It is an arithmetic number, because the mean of its divisors is an integer number (632760156).

Almost surely, 210211312140 is an apocalyptic number.

10211312140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10211312140 is an abundant number, since it is smaller than the sum of its proper divisors (12568053476).

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

10211312140 is a wasteful number, since it uses less digits than its factorization.

10211312140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1766706 (or 1766687 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 10211312140 its reverse (4121311201), we get a palindrome (14332623341).

The spelling of 10211312140 in words is "ten billion, two hundred eleven million, three hundred twelve thousand, one hundred forty".

Divisors: 1 2 4 5 10 17 20 34 68 85 170 289 340 578 1156 1445 2890 5780 1766663 3533326 7066652 8833315 17666630 30033271 35333260 60066542 120133084 150166355 300332710 510565607 600665420 1021131214 2042262428 2552828035 5105656070 10211312140