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2720233 = 231011171
BaseRepresentation
bin1010011000000111101001
312010012110101
422120013221
51144021413
6134145401
732056465
oct12300751
95105411
102720233
11159882a
12ab2261
13743209
1450b4a5
1538aedd
hex2981e9

2720233 has 8 divisors (see below), whose sum is σ = 2869056. Its totient is φ = 2574000.

The previous prime is 2720197. The next prime is 2720239. The reversal of 2720233 is 3320272.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2720233 - 217 = 2589161 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2720233.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2720239) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1738 + ... + 2908.

It is an arithmetic number, because the mean of its divisors is an integer number (358632).

22720233 is an apocalyptic number.

2720233 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

2720233 is a deficient number, since it is larger than the sum of its proper divisors (148823).

2720233 is a wasteful number, since it uses less digits than its factorization.

2720233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1295.

The product of its (nonzero) digits is 504, while the sum is 19.

The square root of 2720233 is about 1649.3128872352. The cubic root of 2720233 is about 139.5946266846.

The spelling of 2720233 in words is "two million, seven hundred twenty thousand, two hundred thirty-three".

Divisors: 1 23 101 1171 2323 26933 118271 2720233