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20341024400 = 2452199925439
BaseRepresentation
bin10010111100011010…
…110110011010010000
31221111121020002210002
4102330122312122100
5313124300240100
613202230425132
71320032566064
oct227432663220
957447202702
1020341024400
118698a83774
123b382021a8
131bc223a618
14dad6d7aa4
157e0b802d5
hex4bc6b6690

20341024400 has 60 divisors (see below), whose sum is σ = 48895680000. Its totient is φ = 8132019840.

The previous prime is 20341024271. The next prime is 20341024411. The reversal of 20341024400 is 442014302.

It is a Harshad number since it is a multiple of its sum of digits (20).

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 11 ways as a sum of consecutive naturals, for example, 786881 + ... + 812319.

It is an arithmetic number, because the mean of its divisors is an integer number (814928000).

Almost surely, 220341024400 is an apocalyptic number.

20341024400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20341024400 is an abundant number, since it is smaller than the sum of its proper divisors (28554655600).

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

20341024400 is a wasteful number, since it uses less digits than its factorization.

20341024400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27456 (or 27445 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

Adding to 20341024400 its reverse (442014302), we get a palindrome (20783038702).

The spelling of 20341024400 in words is "twenty billion, three hundred forty-one million, twenty-four thousand, four hundred".

Divisors: 1 2 4 5 8 10 16 20 25 40 50 80 100 200 400 1999 3998 7996 9995 15992 19990 25439 31984 39980 49975 50878 79960 99950 101756 127195 159920 199900 203512 254390 399800 407024 508780 635975 799600 1017560 1271950 2035120 2543900 5087800 10175600 50852561 101705122 203410244 254262805 406820488 508525610 813640976 1017051220 1271314025 2034102440 2542628050 4068204880 5085256100 10170512200 20341024400