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8237709142 = 2131718637351
BaseRepresentation
bin1111010110000000…
…10111011101010110
3210021002200222112121
413223000113131112
5113332323143032
63441230410154
7411065241505
oct75300273526
923232628477
108237709142
113547a76893
12171a96095a
13a13871310
145820a483c
15333302a97
hex1eb017756

8237709142 has 16 divisors (see below), whose sum is σ = 14089838112. Its totient is φ = 3578371200.

The previous prime is 8237709127. The next prime is 8237709149. The reversal of 8237709142 is 2419077328.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8237709149) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9318234 + ... + 9319117.

It is an arithmetic number, because the mean of its divisors is an integer number (880614882).

Almost surely, 28237709142 is an apocalyptic number.

8237709142 is a deficient number, since it is larger than the sum of its proper divisors (5852128970).

8237709142 is a wasteful number, since it uses less digits than its factorization.

8237709142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18637383.

The product of its (nonzero) digits is 169344, while the sum is 43.

The square root of 8237709142 is about 90761.8264580435. The cubic root of 8237709142 is about 2019.6160710391.

The spelling of 8237709142 in words is "eight billion, two hundred thirty-seven million, seven hundred nine thousand, one hundred forty-two".

Divisors: 1 2 13 17 26 34 221 442 18637351 37274702 242285563 316834967 484571126 633669934 4118854571 8237709142