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10538615140 = 2252634214759
BaseRepresentation
bin10011101000010011…
…01000000101100100
31000012110021010012021
421310021220011210
5133040341141030
64501423032524
7522104515324
oct116411500544
930173233167
1010538615140
114518856599
12206143b744
13cbc472961
1471d8cb284
1541a30297a
hex274268164

10538615140 has 48 divisors (see below), whose sum is σ = 22272687360. Its totient is φ = 4188562560.

The previous prime is 10538615081. The next prime is 10538615141. The reversal of 10538615140 is 4151683501.

It is a super-2 number, since 2×105386151402 (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 10538615096 and 10538615105.

It is not an unprimeable number, because it can be changed into a prime (10538615141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2212081 + ... + 2216839.

It is an arithmetic number, because the mean of its divisors is an integer number (464014320).

Almost surely, 210538615140 is an apocalyptic number.

10538615140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10538615140 is an abundant number, since it is smaller than the sum of its proper divisors (11734072220).

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

10538615140 is a wasteful number, since it uses less digits than its factorization.

10538615140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5452 (or 5450 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 34.

The spelling of 10538615140 in words is "ten billion, five hundred thirty-eight million, six hundred fifteen thousand, one hundred forty".

Divisors: 1 2 4 5 10 20 263 421 526 842 1052 1315 1684 2105 2630 4210 4759 5260 8420 9518 19036 23795 47590 95180 110723 221446 442892 553615 1107230 1251617 2003539 2214460 2503234 4007078 5006468 6258085 8014156 10017695 12516170 20035390 25032340 40070780 526930757 1053861514 2107723028 2634653785 5269307570 10538615140