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2157104270 = 25215710427
BaseRepresentation
bin1000000010010010…
…1100110010001110
312120022222020202202
42000210230302032
513404204314040
6554014121502
7104312040506
oct20044546216
95508866682
102157104270
11a076a1402
125024b0292
13284b92a79
141666b2a06
15c9597015
hex8092cc8e

2157104270 has 8 divisors (see below), whose sum is σ = 3882787704. Its totient is φ = 862841704.

The previous prime is 2157104267. The next prime is 2157104297. The reversal of 2157104270 is 724017512.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 107855204 + ... + 107855223.

It is an arithmetic number, because the mean of its divisors is an integer number (485348463).

Almost surely, 22157104270 is an apocalyptic number.

2157104270 is a deficient number, since it is larger than the sum of its proper divisors (1725683434).

2157104270 is a wasteful number, since it uses less digits than its factorization.

2157104270 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 215710434.

The product of its (nonzero) digits is 3920, while the sum is 29.

The square root of 2157104270 is about 46444.6366117768. The cubic root of 2157104270 is about 1292.0829018779.

The spelling of 2157104270 in words is "two billion, one hundred fifty-seven million, one hundred four thousand, two hundred seventy".

Divisors: 1 2 5 10 215710427 431420854 1078552135 2157104270