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12112442300 = 2252722471927
BaseRepresentation
bin10110100011111010…
…10011001110111100
31011021010200211012002
423101331103032330
5144301241123200
65321523401432
7606105026600
oct132175231674
934233624162
1012112442300
1151561811a2
122420523278
1311b054372a
1482c92b500
154ad581bd5
hex2d1f533bc

12112442300 has 54 divisors (see below), whose sum is σ = 30575277432. Its totient is φ = 4152835680.

The previous prime is 12112442299. The next prime is 12112442317. The reversal of 12112442300 is 324421121.

It is a super-2 number, since 2×121124423002 (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 1231064 + ... + 1240863.

Almost surely, 212112442300 is an apocalyptic number.

12112442300 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12112442300 is an abundant number, since it is smaller than the sum of its proper divisors (18462835132).

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

12112442300 is a wasteful number, since it uses less digits than its factorization.

12112442300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2471955 (or 2471941 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 12112442300 its reverse (324421121), we get a palindrome (12436863421).

The spelling of 12112442300 in words is "twelve billion, one hundred twelve million, four hundred forty-two thousand, three hundred".

Divisors: 1 2 4 5 7 10 14 20 25 28 35 49 50 70 98 100 140 175 196 245 350 490 700 980 1225 2450 4900 2471927 4943854 9887708 12359635 17303489 24719270 34606978 49438540 61798175 69213956 86517445 121124423 123596350 173034890 242248846 247192700 346069780 432587225 484497692 605622115 865174450 1211244230 1730348900 2422488460 3028110575 6056221150 12112442300