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7142475 = 35295233
BaseRepresentation
bin11011001111110001001011
3111102212122010
4123033301023
53312024400
6413031003
7114465354
oct33176113
914385563
107142475
11403927a
122485463
131631022
14d3cd2b
15961450
hex6cfc4b

7142475 has 12 divisors (see below), whose sum is σ = 11809016. Its totient is φ = 3809280.

The previous prime is 7142437. The next prime is 7142479. The reversal of 7142475 is 5742417.

It is not a de Polignac number, because 7142475 - 29 = 7141963 is a prime.

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7142479) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 47542 + ... + 47691.

Almost surely, 27142475 is an apocalyptic number.

7142475 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

7142475 is a deficient number, since it is larger than the sum of its proper divisors (4666541).

7142475 is a wasteful number, since it uses less digits than its factorization.

7142475 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95246 (or 95241 counting only the distinct ones).

The product of its digits is 7840, while the sum is 30.

The square root of 7142475 is about 2672.5409257858. The cubic root of 7142475 is about 192.5822440496.

The spelling of 7142475 in words is "seven million, one hundred forty-two thousand, four hundred seventy-five".

Divisors: 1 3 5 15 25 75 95233 285699 476165 1428495 2380825 7142475