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12402143330 = 254721932909
BaseRepresentation
bin10111000110011100…
…11011000001100010
31012000022211011021212
423203032123001202
5200344422041310
65410352550122
7616223323163
oct134316330142
935008734255
1012402143330
115294760935
1224a1552342
131228576865
148591bd76a
154c8c09205
hex2e339b062

12402143330 has 48 divisors (see below), whose sum is σ = 22935002040. Its totient is φ = 4828489728.

The previous prime is 12402143323. The next prime is 12402143357. The reversal of 12402143330 is 3334120421.

It can be written as a sum of positive squares in 4 ways, for example, as 10584911689 + 1817231641 = 102883^2 + 42629^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12402143296 and 12402143305.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4261916 + ... + 4264824.

Almost surely, 212402143330 is an apocalyptic number.

12402143330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12402143330 is a deficient number, since it is larger than the sum of its proper divisors (10532858710).

12402143330 is a wasteful number, since it uses less digits than its factorization.

12402143330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3203 (or 3156 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 12402143330 its reverse (3334120421), we get a palindrome (15736263751).

The spelling of 12402143330 in words is "twelve billion, four hundred two million, one hundred forty-three thousand, three hundred thirty".

Divisors: 1 2 5 10 47 94 193 235 386 470 965 1930 2209 2909 4418 5818 9071 11045 14545 18142 22090 29090 45355 90710 136723 273446 426337 561437 683615 852674 1122874 1367230 2131685 2807185 4263370 5614370 6425981 12851962 26387539 32129905 52775078 64259810 131937695 263875390 1240214333 2480428666 6201071665 12402143330