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2148972 = 223725583
BaseRepresentation
bin1000001100101001101100
311001011211120
420030221230
51022231342
6114020540
724160140
oct10145154
94034746
102148972
111238611
12877750
135a31a7
143dd220
152c6aec
hex20ca6c

2148972 has 24 divisors (see below), whose sum is σ = 5730816. Its totient is φ = 613968.

The previous prime is 2148947. The next prime is 2148983. The reversal of 2148972 is 2798412.

It is a happy number.

It is a nialpdrome in base 12.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12708 + ... + 12875.

It is an arithmetic number, because the mean of its divisors is an integer number (238784).

22148972 is an apocalyptic number.

It is an amenable number.

2148972 is an abundant number, since it is smaller than the sum of its proper divisors (3581844).

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

2148972 is a wasteful number, since it uses less digits than its factorization.

2148972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25597 (or 25595 counting only the distinct ones).

The product of its digits is 8064, while the sum is 33.

The square root of 2148972 is about 1465.9372428586. The cubic root of 2148972 is about 129.0457142230.

The spelling of 2148972 in words is "two million, one hundred forty-eight thousand, nine hundred seventy-two".

Divisors: 1 2 3 4 6 7 12 14 21 28 42 84 25583 51166 76749 102332 153498 179081 306996 358162 537243 716324 1074486 2148972