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20123141304 = 2337119780603
BaseRepresentation
bin10010101111011011…
…101100010010111000
31220221102020111100210
4102233123230102320
5312203011010204
613124444431120
71311445610310
oct225733542270
956842214323
1020123141304
118596a969a2
123a972484a0
131b89061606
14d8c7bc440
157cb992389
hex4af6ec4b8

20123141304 has 32 divisors (see below), whose sum is σ = 57494689920. Its totient is φ = 5749468896.

The previous prime is 20123141299. The next prime is 20123141309. The reversal of 20123141304 is 40314132102.

It is an interprime number because it is at equal distance from previous prime (20123141299) and next prime (20123141309).

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20123141309) 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, 59890134 + ... + 59890469.

It is an arithmetic number, because the mean of its divisors is an integer number (1796709060).

Almost surely, 220123141304 is an apocalyptic number.

20123141304 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

20123141304 is an abundant number, since it is smaller than the sum of its proper divisors (37371548616).

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

20123141304 is a wasteful number, since it uses less digits than its factorization.

20123141304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119780619 (or 119780615 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 20123141304 its reverse (40314132102), we get a palindrome (60437273406).

The spelling of 20123141304 in words is "twenty billion, one hundred twenty-three million, one hundred forty-one thousand, three hundred four".

Divisors: 1 2 3 4 6 7 8 12 14 21 24 28 42 56 84 168 119780603 239561206 359341809 479122412 718683618 838464221 958244824 1437367236 1676928442 2515392663 2874734472 3353856884 5030785326 6707713768 10061570652 20123141304