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124213312420 = 22559479219761
BaseRepresentation
bin111001110101110110…
…0001011101110100100
3102212121122021001120121
41303223230023232210
54013342101444140
6133021322211324
711655056510041
oct1635354135644
9385548231517
10124213312420
11487511a40aa
12200a6953b44
13b937074542
146024b461c8
15336ed1464a
hex1cebb0bba4

124213312420 has 48 divisors (see below), whose sum is σ = 265824115200. Its totient is φ = 48741009920.

The previous prime is 124213312409. The next prime is 124213312427. The reversal of 124213312420 is 24213312421.

It is not an unprimeable number, because it can be changed into a prime (124213312427) 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, 455340 + ... + 675100.

It is an arithmetic number, because the mean of its divisors is an integer number (5538002400).

Almost surely, 2124213312420 is an apocalyptic number.

124213312420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

124213312420 is an abundant number, since it is smaller than the sum of its proper divisors (141610802780).

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

124213312420 is a wasteful number, since it uses less digits than its factorization.

124213312420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220308 (or 220306 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 124213312420 its reverse (24213312421), we get a palindrome (148426624841).

Subtracting from 124213312420 its reverse (24213312421), we obtain a palindrome (99999999999).

The spelling of 124213312420 in words is "one hundred twenty-four billion, two hundred thirteen million, three hundred twelve thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 59 118 236 295 479 590 958 1180 1916 2395 4790 9580 28261 56522 113044 141305 219761 282610 439522 565220 879044 1098805 2197610 4395220 12965899 25931798 51863596 64829495 105265519 129658990 210531038 259317980 421062076 526327595 1052655190 2105310380 6210665621 12421331242 24842662484 31053328105 62106656210 124213312420