Search a number
-
+
47920075 = 52761672
BaseRepresentation
bin1011011011001…
…1001111001011
310100011120222121
42312303033023
544231420300
64431032111
71121212450
oct266631713
9110146877
1047920075
1125060075
121406b637
139c0a798
146515827
15431881a
hex2db33cb

47920075 has 36 divisors (see below), whose sum is σ = 70068432. Its totient is φ = 31838400.

The previous prime is 47920073. The next prime is 47920097. The reversal of 47920075 is 57002974.

It is not a de Polignac number, because 47920075 - 21 = 47920073 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 47920075.

It is not an unprimeable number, because it can be changed into a prime (47920073) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 715192 + ... + 715258.

Almost surely, 247920075 is an apocalyptic number.

47920075 is a deficient number, since it is larger than the sum of its proper divisors (22148357).

47920075 is an equidigital number, since it uses as much as digits as its factorization.

47920075 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212 (or 140 counting only the distinct ones).

The product of its (nonzero) digits is 17640, while the sum is 34.

The square root of 47920075 is about 6922.4327371236. The cubic root of 47920075 is about 363.2222935003. Note that the first 4 decimals are identical.

The spelling of 47920075 in words is "forty-seven million, nine hundred twenty thousand, seventy-five".

Divisors: 1 5 7 25 35 61 67 175 305 335 427 469 1525 1675 2135 2345 4087 4489 10675 11725 20435 22445 28609 31423 102175 112225 143045 157115 273829 715225 785575 1369145 1916803 6845725 9584015 47920075