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8537747142 = 2325727120431
BaseRepresentation
bin1111111001110001…
…11010111011000110
3211001000021111022010
413330320322323012
5114441130402032
63531105315050
7421400440041
oct77470727306
924030244263
108537747142
113691376881
1217a3335a86
13a60a834b2
145adc87c58
1534e81cccc
hex1fce3aec6

8537747142 has 32 divisors (see below), whose sum is σ = 17206032384. Its totient is φ = 2824243200.

The previous prime is 8537747129. The next prime is 8537747149. The reversal of 8537747142 is 2417477358.

It is a junction number, because it is equal to n+sod(n) for n = 8537747091 and 8537747100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8537747149) 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, 407667 + ... + 428097.

It is an arithmetic number, because the mean of its divisors is an integer number (537688512).

Almost surely, 28537747142 is an apocalyptic number.

8537747142 is an abundant number, since it is smaller than the sum of its proper divisors (8668285242).

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

8537747142 is a wasteful number, since it uses less digits than its factorization.

8537747142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20964.

The product of its digits is 1317120, while the sum is 48.

The square root of 8537747142 is about 92399.9304220517. The cubic root of 8537747142 is about 2043.8440864054.

The spelling of 8537747142 in words is "eight billion, five hundred thirty-seven million, seven hundred forty-seven thousand, one hundred forty-two".

Divisors: 1 2 3 6 257 271 514 542 771 813 1542 1626 20431 40862 61293 69647 122586 139294 208941 417882 5250767 5536801 10501534 11073602 15752301 16610403 31504602 33220806 1422957857 2845915714 4268873571 8537747142