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20342214424 = 2371792029351
BaseRepresentation
bin10010111100011111…
…011000111100011000
31221111200110120012001
4102330133120330120
5313130101330144
613202312130344
71320045653410
oct227437307430
957450416161
1020342214424
118699716864
123b386969b4
131bc256618c
14dad927640
157e0d17bd4
hex4bc7d8f18

20342214424 has 32 divisors (see below), whose sum is σ = 43834003200. Its totient is φ = 8669383200.

The previous prime is 20342214419. The next prime is 20342214427. The reversal of 20342214424 is 42441224302.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a junction number, because it is equal to n+sod(n) for n = 20342214392 and 20342214401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20342214427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1004652 + ... + 1024699.

It is an arithmetic number, because the mean of its divisors is an integer number (1369812600).

Almost surely, 220342214424 is an apocalyptic number.

It is an amenable number.

20342214424 is an abundant number, since it is smaller than the sum of its proper divisors (23491788776).

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

20342214424 is a wasteful number, since it uses less digits than its factorization.

20342214424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2029543 (or 2029539 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 28.

Adding to 20342214424 its reverse (42441224302), we get a palindrome (62783438726).

The spelling of 20342214424 in words is "twenty billion, three hundred forty-two million, two hundred fourteen thousand, four hundred twenty-four".

Divisors: 1 2 4 7 8 14 28 56 179 358 716 1253 1432 2506 5012 10024 2029351 4058702 8117404 14205457 16234808 28410914 56821828 113643656 363253829 726507658 1453015316 2542776803 2906030632 5085553606 10171107212 20342214424