Search a number
-
+
12706124450 = 252829306541
BaseRepresentation
bin10111101010101100…
…00001001010100010
31012210111210222222212
423311112001022202
5202010231440300
65500452202122
7626604163415
oct136526011242
935714728885
1012706124450
1154303043a8
122567309342
131276539746
1488770bb7c
154e5752935
hex2f55812a2

12706124450 has 24 divisors (see below), whose sum is σ = 23661976980. Its totient is φ = 5076302400.

The previous prime is 12706124443. The next prime is 12706124477. The reversal of 12706124450 is 5442160721.

It can be written as a sum of positive squares in 6 ways, for example, as 1835351281 + 10870773169 = 42841^2 + 104263^2 .

It is a super-2 number, since 2×127061244502 (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 111821 + ... + 194720.

Almost surely, 212706124450 is an apocalyptic number.

12706124450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12706124450 is a deficient number, since it is larger than the sum of its proper divisors (10955852530).

12706124450 is a wasteful number, since it uses less digits than its factorization.

12706124450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 307382 (or 307377 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 32.

The spelling of 12706124450 in words is "twelve billion, seven hundred six million, one hundred twenty-four thousand, four hundred fifty".

Divisors: 1 2 5 10 25 50 829 1658 4145 8290 20725 41450 306541 613082 1532705 3065410 7663525 15327050 254122489 508244978 1270612445 2541224890 6353062225 12706124450