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10302121120 = 25564388257
BaseRepresentation
bin10011001100000110…
…11110010010100000
3222120222020222101111
421212003132102200
5132044320333440
64422134113104
7513203404354
oct114603362240
928528228344
1010302121120
114407308095
121bb61ab794
13c8247b875
146da329464
1540468a4ea
hex2660de4a0

10302121120 has 24 divisors (see below), whose sum is σ = 24338761524. Its totient is φ = 4120848384.

The previous prime is 10302121031. The next prime is 10302121129. The reversal of 10302121120 is 2112120301.

It can be written as a sum of positive squares in 2 ways, for example, as 10121164816 + 180956304 = 100604^2 + 13452^2 .

It is a super-2 number, since 2×103021211202 (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 10302121120.

It is not an unprimeable number, because it can be changed into a prime (10302121129) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32193969 + ... + 32194288.

Almost surely, 210302121120 is an apocalyptic number.

10302121120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10302121120 is an abundant number, since it is smaller than the sum of its proper divisors (14036640404).

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

10302121120 is an equidigital number, since it uses as much as digits as its factorization.

10302121120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64388272 (or 64388264 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 10302121120 its reverse (2112120301), we get a palindrome (12414241421).

The spelling of 10302121120 in words is "ten billion, three hundred two million, one hundred twenty-one thousand, one hundred twenty".

Divisors: 1 2 4 5 8 10 16 20 32 40 80 160 64388257 128776514 257553028 321941285 515106056 643882570 1030212112 1287765140 2060424224 2575530280 5151060560 10302121120