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8104090845 = 351914316563
BaseRepresentation
bin1111000110000101…
…01001110011011101
3202220210021110200210
413203002221303131
5113044121401340
63420054443033
7404553431004
oct74302516335
922823243623
108104090845
113489603444
1216a2063479
139c1c89936
1456c441c3b
1532670c180
hex1e30a9cdd

8104090845 has 32 divisors (see below), whose sum is σ = 13066665984. Its totient is φ = 4288923200.

The previous prime is 8104090831. The next prime is 8104090877. The reversal of 8104090845 is 5480904018.

It is not a de Polignac number, because 8104090845 - 24 = 8104090829 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1231534 + ... + 1238096.

It is an arithmetic number, because the mean of its divisors is an integer number (408333312).

Almost surely, 28104090845 is an apocalyptic number.

It is an amenable number.

8104090845 is a deficient number, since it is larger than the sum of its proper divisors (4962575139).

8104090845 is a wasteful number, since it uses less digits than its factorization.

8104090845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7193.

The product of its (nonzero) digits is 46080, while the sum is 39.

The square root of 8104090845 is about 90022.7240478758. The cubic root of 8104090845 is about 2008.6368854982.

The spelling of 8104090845 in words is "eight billion, one hundred four million, ninety thousand, eight hundred forty-five".

Divisors: 1 3 5 15 191 431 573 955 1293 2155 2865 6465 6563 19689 32815 82321 98445 246963 411605 1234815 1253533 2828653 3760599 6267665 8485959 14143265 18802995 42429795 540272723 1620818169 2701363615 8104090845