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19204953 = 319336929
BaseRepresentation
bin100100101000…
…0101101011001
31100010201020120
41021100231121
514404024303
61523343453
7322145055
oct111205531
940121216
1019204953
11a927a69
126521b89
133c955a1
14279cc65
151a45553
hex1250b59

19204953 has 8 divisors (see below), whose sum is σ = 26954400. Its totient is φ = 12129408.

The previous prime is 19204943. The next prime is 19204967. The reversal of 19204953 is 35940291.

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

It is not a de Polignac number, because 19204953 - 28 = 19204697 is a prime.

It is not an unprimeable number, because it can be changed into a prime (19204943) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 168408 + ... + 168521.

It is an arithmetic number, because the mean of its divisors is an integer number (3369300).

Almost surely, 219204953 is an apocalyptic number.

It is an amenable number.

19204953 is a deficient number, since it is larger than the sum of its proper divisors (7749447).

19204953 is a wasteful number, since it uses less digits than its factorization.

19204953 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 336951.

The product of its (nonzero) digits is 9720, while the sum is 33.

The square root of 19204953 is about 4382.3456048103. The cubic root of 19204953 is about 267.7962037574.

The spelling of 19204953 in words is "nineteen million, two hundred four thousand, nine hundred fifty-three".

Divisors: 1 3 19 57 336929 1010787 6401651 19204953