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12102132040 = 2351758730319
BaseRepresentation
bin10110100010101011…
…11110000101001000
31011020102022000011121
423101111332011020
5144241121211130
65320514405024
7605621265535
oct132125760510
934212260147
1012102132040
115150379a19
122418b90774
1311ab37389b
1482b405d8c
154ac6e6d7a
hex2d157e148

12102132040 has 64 divisors (see below), whose sum is σ = 28881619200. Its totient is φ = 4548185088.

The previous prime is 12102132011. The next prime is 12102132043. The reversal of 12102132040 is 4023120121.

It is not an unprimeable number, because it can be changed into a prime (12102132043) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 384001 + ... + 414319.

It is an arithmetic number, because the mean of its divisors is an integer number (451275300).

Almost surely, 212102132040 is an apocalyptic number.

12102132040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12102132040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14440809600).

12102132040 is an abundant number, since it is smaller than the sum of its proper divisors (16779487160).

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

12102132040 is a wasteful number, since it uses less digits than its factorization.

12102132040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30934 (or 30930 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 12102132040 its reverse (4023120121), we get a palindrome (16125252161).

The spelling of 12102132040 in words is "twelve billion, one hundred two million, one hundred thirty-two thousand, forty".

Divisors: 1 2 4 5 8 10 17 20 34 40 68 85 136 170 340 587 680 1174 2348 2935 4696 5870 9979 11740 19958 23480 30319 39916 49895 60638 79832 99790 121276 151595 199580 242552 303190 399160 515423 606380 1030846 1212760 2061692 2577115 4123384 5154230 10308460 17797253 20616920 35594506 71189012 88986265 142378024 177972530 302553301 355945060 605106602 711890120 1210213204 1512766505 2420426408 3025533010 6051066020 12102132040