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7250432 = 2972172
BaseRepresentation
bin11011101010001000000000
3111122100201112
4123222020000
53324003212
6415222452
7115425200
oct33521000
914570645
107250432
1141023a2
122517a28
13166b1c7
14d6a400
15983422
hex6ea200

7250432 has 90 divisors (see below), whose sum is σ = 17901477. Its totient is φ = 2924544.

The previous prime is 7250429. The next prime is 7250491. The reversal of 7250432 is 2340527.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 2 ways, for example, as 6635776 + 614656 = 2576^2 + 784^2 .

It is an ABA number since it can be written as A⋅BA, here for A=2, B=1904.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 7250398 and 7250407.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 426488 + ... + 426504.

Almost surely, 27250432 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 7250432

7250432 is an abundant number, since it is smaller than the sum of its proper divisors (10651045).

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

7250432 is an equidigital number, since it uses as much as digits as its factorization.

7250432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66 (or 26 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 23.

The square root of 7250432 is about 2692.6626227584. The cubic root of 7250432 is about 193.5476761360.

Adding to 7250432 its reverse (2340527), we get a palindrome (9590959).

The spelling of 7250432 in words is "seven million, two hundred fifty thousand, four hundred thirty-two".

Divisors: 1 2 4 7 8 14 16 17 28 32 34 49 56 64 68 98 112 119 128 136 196 224 238 256 272 289 392 448 476 512 544 578 784 833 896 952 1088 1156 1568 1666 1792 1904 2023 2176 2312 3136 3332 3584 3808 4046 4352 4624 6272 6664 7616 8092 8704 9248 12544 13328 14161 15232 16184 18496 25088 26656 28322 30464 32368 36992 53312 56644 60928 64736 73984 106624 113288 129472 147968 213248 226576 258944 426496 453152 517888 906304 1035776 1812608 3625216 7250432