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2250558 = 23371587
BaseRepresentation
bin1000100101011100111110
311020100012000
420211130332
51034004213
6120123130
725062252
oct10453476
94210160
102250558
1112a7972
129064a6
1360a4bb
14428262
152e6c73
hex22573e

2250558 has 32 divisors (see below), whose sum is σ = 5080320. Its totient is φ = 738360.

The previous prime is 2250509. The next prime is 2250559. The reversal of 2250558 is 8550522.

It is a super-3 number, since 3×22505583 = 34197305180642223336, which contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2250559) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3541 + ... + 4127.

It is an arithmetic number, because the mean of its divisors is an integer number (158760).

22250558 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2250558, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2540160).

2250558 is an abundant number, since it is smaller than the sum of its proper divisors (2829762).

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

2250558 is a wasteful number, since it uses less digits than its factorization.

2250558 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 669 (or 663 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 27.

The square root of 2250558 is about 1500.1859884694. The cubic root of 2250558 is about 131.0479012129.

The spelling of 2250558 in words is "two million, two hundred fifty thousand, five hundred fifty-eight".

Divisors: 1 2 3 6 9 18 27 54 71 142 213 426 587 639 1174 1278 1761 1917 3522 3834 5283 10566 15849 31698 41677 83354 125031 250062 375093 750186 1125279 2250558