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19240485 = 3511294021
BaseRepresentation
bin100100101100…
…1011000100101
31100012111222120
41021121120211
514411143420
61524220153
7322353465
oct111313045
940174876
1019240485
11a951730
12653a659
133ca8804
1427abba5
151a50d40
hex1259625

19240485 has 32 divisors (see below), whose sum is σ = 34750080. Its totient is φ = 9004800.

The previous prime is 19240477. The next prime is 19240493. The reversal of 19240485 is 58404291.

It is an interprime number because it is at equal distance from previous prime (19240477) and next prime (19240493).

It is not a de Polignac number, because 19240485 - 23 = 19240477 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2775 + ... + 6795.

It is an arithmetic number, because the mean of its divisors is an integer number (1085940).

Almost surely, 219240485 is an apocalyptic number.

19240485 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

19240485 is a deficient number, since it is larger than the sum of its proper divisors (15509595).

19240485 is a wasteful number, since it uses less digits than its factorization.

19240485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4069.

The product of its (nonzero) digits is 11520, while the sum is 33.

The square root of 19240485 is about 4386.3977247851. The cubic root of 19240485 is about 267.9612561873.

The spelling of 19240485 in words is "nineteen million, two hundred forty thousand, four hundred eighty-five".

Divisors: 1 3 5 11 15 29 33 55 87 145 165 319 435 957 1595 4021 4785 12063 20105 44231 60315 116609 132693 221155 349827 583045 663465 1282699 1749135 3848097 6413495 19240485