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19970275 = 5213431429
BaseRepresentation
bin100110000101…
…1100011100011
31101120121001211
41030023203203
520103022100
61552010551
7331513243
oct114134343
941517054
1019970275
11102aaa66
126830a57
1341a2a40
14291bb23
151b471ba
hex130b8e3

19970275 has 24 divisors (see below), whose sum is σ = 27307280. Its totient is φ = 14394240.

The previous prime is 19970267. The next prime is 19970287. The reversal of 19970275 is 57207991.

It is not a de Polignac number, because 19970275 - 23 = 19970267 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13261 + ... + 14689.

Almost surely, 219970275 is an apocalyptic number.

19970275 is a deficient number, since it is larger than the sum of its proper divisors (7337005).

19970275 is a wasteful number, since it uses less digits than its factorization.

19970275 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1495 (or 1490 counting only the distinct ones).

The product of its (nonzero) digits is 39690, while the sum is 40.

The square root of 19970275 is about 4468.8113632151. The cubic root of 19970275 is about 271.3072182096.

The spelling of 19970275 in words is "nineteen million, nine hundred seventy thousand, two hundred seventy-five".

Divisors: 1 5 13 25 43 65 215 325 559 1075 1429 2795 7145 13975 18577 35725 61447 92885 307235 464425 798811 1536175 3994055 19970275