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2120994 = 232117833
BaseRepresentation
bin1000000101110100100010
310222202110100
420011310202
51020332434
6113243230
724012441
oct10056442
93882410
102120994
111219597
12863516
13593535
143d2d58
152bd699
hex205d22

2120994 has 12 divisors (see below), whose sum is σ = 4595526. Its totient is φ = 706992.

The previous prime is 2120981. The next prime is 2121011. The reversal of 2120994 is 4990212.

It can be written as a sum of positive squares in only one way, i.e., 2117025 + 3969 = 1455^2 + 63^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 58899 + ... + 58934.

22120994 is an apocalyptic number.

2120994 is an abundant number, since it is smaller than the sum of its proper divisors (2474532).

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

2120994 is a wasteful number, since it uses less digits than its factorization.

2120994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117841 (or 117838 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 2120994 is about 1456.3632788559. The cubic root of 2120994 is about 128.4832400535.

The spelling of 2120994 in words is "two million, one hundred twenty thousand, nine hundred ninety-four".

Divisors: 1 2 3 6 9 18 117833 235666 353499 706998 1060497 2120994