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2157060 = 223535951
BaseRepresentation
bin1000001110101000000100
311001120221010
420032220010
51023011220
6114122220
724222543
oct10165004
94046833
102157060
1112436a4
12880370
135a6a89
1440215a
152c91e0
hex20ea04

2157060 has 24 divisors (see below), whose sum is σ = 6039936. Its totient is φ = 575200.

The previous prime is 2157041. The next prime is 2157091. The reversal of 2157060 is 607512.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17916 + ... + 18035.

It is an arithmetic number, because the mean of its divisors is an integer number (251664).

22157060 is an apocalyptic number.

2157060 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2157060 is an abundant number, since it is smaller than the sum of its proper divisors (3882876).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2157060 is a wasteful number, since it uses less digits than its factorization.

2157060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35963 (or 35961 counting only the distinct ones).

The product of its (nonzero) digits is 420, while the sum is 21.

The square root of 2157060 is about 1468.6932967778. The cubic root of 2157060 is about 129.2074062728.

The spelling of 2157060 in words is "two million, one hundred fifty-seven thousand, sixty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 35951 71902 107853 143804 179755 215706 359510 431412 539265 719020 1078530 2157060