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2156104601 = 72221138683
BaseRepresentation
bin1000000010000011…
…1000101110011001
312120021002110110222
42000200320232121
513403430321401
6553540445425
7104300405150
oct20040705631
95507073428
102156104601
11a07079332
125020a9875
13284902a51
141664d2597
15c944ac1b
hex80838b99

2156104601 has 8 divisors (see below), whose sum is σ = 2465246784. Its totient is φ = 1847244240.

The previous prime is 2156104579. The next prime is 2156104609. The reversal of 2156104601 is 1064016512.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2156104601 - 26 = 2156104537 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2156104609) 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, 53795 + ... + 84888.

It is an arithmetic number, because the mean of its divisors is an integer number (308155848).

Almost surely, 22156104601 is an apocalyptic number.

It is an amenable number.

2156104601 is a deficient number, since it is larger than the sum of its proper divisors (309142183).

2156104601 is a wasteful number, since it uses less digits than its factorization.

2156104601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140911.

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 2156104601 is about 46433.8734223196. The cubic root of 2156104601 is about 1291.8832739441.

The spelling of 2156104601 in words is "two billion, one hundred fifty-six million, one hundred four thousand, six hundred one".

Divisors: 1 7 2221 15547 138683 970781 308014943 2156104601