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12400531310 = 254432799217
BaseRepresentation
bin10111000110010000…
…10001011101101110
31012000012210021000102
423203020101131232
5200344014000220
65410254231102
7616203530336
oct134310213556
935005707012
1012400531310
11529385a792
1224a0ab5492
131228130bbb
14858cc00c6
154c89db775
hex2e321176e

12400531310 has 16 divisors (see below), whose sum is σ = 22371350256. Its totient is φ = 4949013888.

The previous prime is 12400531271. The next prime is 12400531327. The reversal of 12400531310 is 1313500421.

12400531310 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×124005313102 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1395179 + ... + 1404038.

It is an arithmetic number, because the mean of its divisors is an integer number (1398209391).

Almost surely, 212400531310 is an apocalyptic number.

12400531310 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12400531310 is a deficient number, since it is larger than the sum of its proper divisors (9970818946).

12400531310 is a wasteful number, since it uses less digits than its factorization.

12400531310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2799667.

The product of its (nonzero) digits is 360, while the sum is 20.

The spelling of 12400531310 in words is "twelve billion, four hundred million, five hundred thirty-one thousand, three hundred ten".

Divisors: 1 2 5 10 443 886 2215 4430 2799217 5598434 13996085 27992170 1240053131 2480106262 6200265655 12400531310