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8243893490 = 257117769907
BaseRepresentation
bin1111010110101111…
…11101010011110010
3210021112100011212112
413223113331103302
5113340414042430
63442011125322
7411201636620
oct75327752362
923245304775
108243893490
113550510218
121720a43842
13a14c281b1
14582c34510
15333b25195
hex1eb5fd4f2

8243893490 has 16 divisors (see below), whose sum is σ = 16958866752. Its totient is φ = 2826477744.

The previous prime is 8243893477. The next prime is 8243893501. The reversal of 8243893490 is 943983428.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58884884 + ... + 58885023.

It is an arithmetic number, because the mean of its divisors is an integer number (1059929172).

Almost surely, 28243893490 is an apocalyptic number.

8243893490 is an abundant number, since it is smaller than the sum of its proper divisors (8714973262).

8243893490 is a wasteful number, since it uses less digits than its factorization.

8243893490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117769921.

The product of its (nonzero) digits is 1492992, while the sum is 50.

The square root of 8243893490 is about 90795.8891690587. The cubic root of 8243893490 is about 2020.1213443754.

The spelling of 8243893490 in words is "eight billion, two hundred forty-three million, eight hundred ninety-three thousand, four hundred ninety".

Divisors: 1 2 5 7 10 14 35 70 117769907 235539814 588849535 824389349 1177699070 1648778698 4121946745 8243893490