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2720241 = 32479631
BaseRepresentation
bin1010011000000111110001
312010012110200
422120013301
51144021431
6134145413
732056506
oct12300761
95105420
102720241
111598837
12ab2269
13743214
1450b4ad
1538aee6
hex2981f1

2720241 has 12 divisors (see below), whose sum is σ = 3943680. Its totient is φ = 1806840.

The previous prime is 2720239. The next prime is 2720243. The reversal of 2720241 is 1420272.

It is an interprime number because it is at equal distance from previous prime (2720239) and next prime (2720243).

It is not a de Polignac number, because 2720241 - 21 = 2720239 is a prime.

It is a super-2 number, since 2×27202412 = 14799422196162, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2720243) 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, 3996 + ... + 4626.

It is an arithmetic number, because the mean of its divisors is an integer number (328640).

22720241 is an apocalyptic number.

It is an amenable number.

2720241 is a deficient number, since it is larger than the sum of its proper divisors (1223439).

2720241 is a wasteful number, since it uses less digits than its factorization.

2720241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1116 (or 1113 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 18.

The square root of 2720241 is about 1649.3153124858. The cubic root of 2720241 is about 139.5947635302.

The spelling of 2720241 in words is "two million, seven hundred twenty thousand, two hundred forty-one".

Divisors: 1 3 9 479 631 1437 1893 4311 5679 302249 906747 2720241