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2268972 = 223447149
BaseRepresentation
bin1000101001111100101100
311021021110000
420221330230
51040101342
6120344300
725200036
oct10517454
94237400
102268972
11130a792
12915090
136159b4
14430c56
152ec44c
hex229f2c

2268972 has 60 divisors (see below), whose sum is σ = 6098400. Its totient is φ = 735264.

The previous prime is 2268949. The next prime is 2268977. The reversal of 2268972 is 2798622.

2268972 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (2268977) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 15154 + ... + 15302.

It is an arithmetic number, because the mean of its divisors is an integer number (101640).

22268972 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2268972, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3049200).

2268972 is an abundant number, since it is smaller than the sum of its proper divisors (3829428).

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

2268972 is a wasteful number, since it uses less digits than its factorization.

2268972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212 (or 201 counting only the distinct ones).

The product of its digits is 24192, while the sum is 36.

The square root of 2268972 is about 1506.3107249170. The cubic root of 2268972 is about 131.4043408837.

It can be divided in two parts, 2268 and 972, that added together give a triangular number (3240 = T80).

The spelling of 2268972 in words is "two million, two hundred sixty-eight thousand, nine hundred seventy-two".

Divisors: 1 2 3 4 6 9 12 18 27 36 47 54 81 94 108 141 149 162 188 282 298 324 423 447 564 596 846 894 1269 1341 1692 1788 2538 2682 3807 4023 5076 5364 7003 7614 8046 12069 14006 15228 16092 21009 24138 28012 42018 48276 63027 84036 126054 189081 252108 378162 567243 756324 1134486 2268972