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42164542358 = 221082271179
BaseRepresentation
bin100111010001001100…
…111101101110010110
311000211112000200101222
4213101030331232112
51142323110323413
631211540250342
73021606460631
oct472114755626
9130745020358
1042164542358
111697786a824
1282089a09b2
133c8c64aa63
14207dc58c18
15116ba4cb08
hex9d133db96

42164542358 has 4 divisors (see below), whose sum is σ = 63246813540. Its totient is φ = 21082271178.

The previous prime is 42164542351. The next prime is 42164542363. The reversal of 42164542358 is 85324546124.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42164542351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10541135588 + ... + 10541135591.

It is an arithmetic number, because the mean of its divisors is an integer number (15811703385).

Almost surely, 242164542358 is an apocalyptic number.

42164542358 is a deficient number, since it is larger than the sum of its proper divisors (21082271182).

42164542358 is a wasteful number, since it uses less digits than its factorization.

42164542358 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21082271181.

The product of its digits is 921600, while the sum is 44.

The spelling of 42164542358 in words is "forty-two billion, one hundred sixty-four million, five hundred forty-two thousand, three hundred fifty-eight".

Divisors: 1 2 21082271179 42164542358