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19975148 = 2213736451
BaseRepresentation
bin100110000110…
…0101111101100
31101120211202022
41030030233230
520103201043
61552045312
7331533404
oct114145754
941524668
1019975148
1110303696
126833838
1341a501b
14291d804
151b48868
hex130cbec

19975148 has 12 divisors (see below), whose sum is σ = 35212632. Its totient is φ = 9914400.

The previous prime is 19975127. The next prime is 19975157. The reversal of 19975148 is 84157991.

It is a junction number, because it is equal to n+sod(n) for n = 19975099 and 19975108.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17678 + ... + 18773.

It is an arithmetic number, because the mean of its divisors is an integer number (2934386).

Almost surely, 219975148 is an apocalyptic number.

It is an amenable number.

19975148 is a deficient number, since it is larger than the sum of its proper divisors (15237484).

19975148 is a wasteful number, since it uses less digits than its factorization.

19975148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36592 (or 36590 counting only the distinct ones).

The product of its digits is 90720, while the sum is 44.

The square root of 19975148 is about 4469.3565532412. The cubic root of 19975148 is about 271.3292838806.

The spelling of 19975148 in words is "nineteen million, nine hundred seventy-five thousand, one hundred forty-eight".

Divisors: 1 2 4 137 274 548 36451 72902 145804 4993787 9987574 19975148