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12110020400 = 245239117741
BaseRepresentation
bin10110100011101000…
…00011111100110000
31011020222010202222002
423101310003330300
5144300131123100
65321355433132
7606045321632
oct132164037460
934228122862
1012110020400
115154877625
12241b7557a8
1311acba625a
1482c49aa52
154ad2542d5
hex2d1d03f30

12110020400 has 60 divisors (see below), whose sum is σ = 29105522544. Its totient is φ = 4842144000.

The previous prime is 12110020379. The next prime is 12110020409. The reversal of 12110020400 is 402001121.

It is not an unprimeable number, because it can be changed into a prime (12110020409) 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, 1560530 + ... + 1568270.

Almost surely, 212110020400 is an apocalyptic number.

12110020400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12110020400 is an abundant number, since it is smaller than the sum of its proper divisors (16995502144).

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

12110020400 is a wasteful number, since it uses less digits than its factorization.

12110020400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11670 (or 11659 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 12110020400 its reverse (402001121), we get a palindrome (12512021521).

The spelling of 12110020400 in words is "twelve billion, one hundred ten million, twenty thousand, four hundred".

Divisors: 1 2 4 5 8 10 16 20 25 40 50 80 100 200 400 3911 7741 7822 15482 15644 19555 30964 31288 38705 39110 61928 62576 77410 78220 97775 123856 154820 156440 193525 195550 309640 312880 387050 391100 619280 774100 782200 1548200 1564400 3096400 30275051 60550102 121100204 151375255 242200408 302750510 484400816 605501020 756876275 1211002040 1513752550 2422004080 3027505100 6055010200 12110020400