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2238372 = 223297641
BaseRepresentation
bin1000100010011110100100
311012201110200
420202132210
51033111442
6115550500
725011603
oct10423644
94181420
102238372
1112997a4
128bb430
13604aa6
14423a3a
152e334c
hex2227a4

2238372 has 36 divisors (see below), whose sum is σ = 5725356. Its totient is φ = 737280.

The previous prime is 2238361. The next prime is 2238377. The reversal of 2238372 is 2738322.

It can be written as a sum of positive squares in 2 ways, for example, as 1572516 + 665856 = 1254^2 + 816^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (2238377) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3172 + ... + 3812.

22238372 is an apocalyptic number.

It is an amenable number.

2238372 is an abundant number, since it is smaller than the sum of its proper divisors (3486984).

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

2238372 is a wasteful number, since it uses less digits than its factorization.

With its successor (2238373) it forms a Ruth-Aaron pair, since the sum of their distinct prime factors is the same (743).

2238372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 748 (or 743 counting only the distinct ones).

The product of its digits is 4032, while the sum is 27.

The square root of 2238372 is about 1496.1189792259. The cubic root of 2238372 is about 130.8109465350.

The spelling of 2238372 in words is "two million, two hundred thirty-eight thousand, three hundred seventy-two".

Divisors: 1 2 3 4 6 9 12 18 36 97 194 291 388 582 641 873 1164 1282 1746 1923 2564 3492 3846 5769 7692 11538 23076 62177 124354 186531 248708 373062 559593 746124 1119186 2238372