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12153113240 = 235378211563
BaseRepresentation
bin10110101000110000…
…11100101010011000
31011100222020010020012
423110120130222120
5144342144110430
65325535221052
7610110521012
oct132430345230
934328203205
1012153113240
11517712a944
122432077788
1311b8ab3788
148340b71b2
154b1e17695
hex2d461ca98

12153113240 has 32 divisors (see below), whose sum is σ = 28083548880. Its totient is φ = 4729859712.

The previous prime is 12153113237. The next prime is 12153113243. The reversal of 12153113240 is 4231135121.

It is an interprime number because it is at equal distance from previous prime (12153113237) and next prime (12153113243).

It is a super-2 number, since 2×121531132402 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12153113243) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4104302 + ... + 4107261.

Almost surely, 212153113240 is an apocalyptic number.

12153113240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12153113240 is an abundant number, since it is smaller than the sum of its proper divisors (15930435640).

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

12153113240 is a wasteful number, since it uses less digits than its factorization.

12153113240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8211611 (or 8211607 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 23.

Adding to 12153113240 its reverse (4231135121), we get a palindrome (16384248361).

The spelling of 12153113240 in words is "twelve billion, one hundred fifty-three million, one hundred thirteen thousand, two hundred forty".

Divisors: 1 2 4 5 8 10 20 37 40 74 148 185 296 370 740 1480 8211563 16423126 32846252 41057815 65692504 82115630 164231260 303827831 328462520 607655662 1215311324 1519139155 2430622648 3038278310 6076556620 12153113240