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17894392942 = 231619946559
BaseRepresentation
bin10000101010100101…
…101100010001101110
31201012002110100101011
4100222211230101232
5243121431033232
612115350535434
71202303554546
oct205245542156
951162410334
1017894392942
117652a112a8
12357496757a
1318c23a58ba
14c1a7ba326
156eae97547
hex42a96c46e

17894392942 has 16 divisors (see below), whose sum is σ = 27712512000. Its totient is φ = 8656994520.

The previous prime is 17894392931. The next prime is 17894392949. The reversal of 17894392942 is 24929349871.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (17894392949) 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, 361059 + ... + 407617.

It is an arithmetic number, because the mean of its divisors is an integer number (1732032000).

Almost surely, 217894392942 is an apocalyptic number.

17894392942 is a deficient number, since it is larger than the sum of its proper divisors (9818119058).

17894392942 is a wasteful number, since it uses less digits than its factorization.

17894392942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52791.

The product of its digits is 7838208, while the sum is 58.

The spelling of 17894392942 in words is "seventeen billion, eight hundred ninety-four million, three hundred ninety-two thousand, nine hundred forty-two".

Divisors: 1 2 31 62 6199 12398 46559 93118 192169 384338 1443329 2886658 288619241 577238482 8947196471 17894392942