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2420138 = 27172867
BaseRepresentation
bin1001001110110110101010
311112221210202
421032312222
51104421023
6123512202
726366540
oct11166652
94487722
102420138
111403316
12988662
13669746
1446dd90
1532c128
hex24edaa

2420138 has 8 divisors (see below), whose sum is σ = 4148832. Its totient is φ = 1037196.

The previous prime is 2420123. The next prime is 2420167. The reversal of 2420138 is 8310242.

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

It is a nialpdrome in base 12.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 86420 + ... + 86447.

It is an arithmetic number, because the mean of its divisors is an integer number (518604).

22420138 is an apocalyptic number.

2420138 is a deficient number, since it is larger than the sum of its proper divisors (1728694).

2420138 is a wasteful number, since it uses less digits than its factorization.

2420138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172876.

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 2420138 is about 1555.6792728580. The cubic root of 2420138 is about 134.2600208447.

The spelling of 2420138 in words is "two million, four hundred twenty thousand, one hundred thirty-eight".

Divisors: 1 2 7 14 172867 345734 1210069 2420138