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13120300 = 2252131203
BaseRepresentation
bin110010000011…
…001100101100
3220200120200001
4302003030230
511324322200
61145114044
7216343414
oct62031454
926616601
1013120300
117451526
124488924
132944bbb
141a57644
15124276a
hexc8332c

13120300 has 18 divisors (see below), whose sum is σ = 28471268. Its totient is φ = 5248080.

The previous prime is 13120297. The next prime is 13120301. The reversal of 13120300 is 302131.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is not an unprimeable number, because it can be changed into a prime (13120301) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 65502 + ... + 65701.

Almost surely, 213120300 is an apocalyptic number.

13120300 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13120300 is an abundant number, since it is smaller than the sum of its proper divisors (15350968).

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

13120300 is a wasteful number, since it uses less digits than its factorization.

13120300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131217 (or 131210 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 10.

The square root of 13120300 is about 3622.1954668405. The cubic root of 13120300 is about 235.8565392584.

Adding to 13120300 its reverse (302131), we get a palindrome (13422431).

The spelling of 13120300 in words is "thirteen million, one hundred twenty thousand, three hundred".

Divisors: 1 2 4 5 10 20 25 50 100 131203 262406 524812 656015 1312030 2624060 3280075 6560150 13120300