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7142274 = 232419947
BaseRepresentation
bin11011001111101110000010
3111102212100200
4123033232002
53312023044
6413030030
7114464646
oct33175602
914385320
107142274
114039107
122485316
131630bc9
14d3cc26
15961369
hex6cfb82

7142274 has 24 divisors (see below), whose sum is σ = 15528240. Its totient is φ = 2372568.

The previous prime is 7142269. The next prime is 7142293. The reversal of 7142274 is 4722417.

It is a happy number.

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 11 ways as a sum of consecutive naturals, for example, 7069 + ... + 8015.

It is an arithmetic number, because the mean of its divisors is an integer number (647010).

Almost surely, 27142274 is an apocalyptic number.

7142274 is an abundant number, since it is smaller than the sum of its proper divisors (8385966).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7142274 is a wasteful number, since it uses less digits than its factorization.

7142274 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1374 (or 1371 counting only the distinct ones).

The product of its digits is 3136, while the sum is 27.

The square root of 7142274 is about 2672.5033208586. The cubic root of 7142274 is about 192.5804375145.

The spelling of 7142274 in words is "seven million, one hundred forty-two thousand, two hundred seventy-four".

Divisors: 1 2 3 6 9 18 419 838 947 1257 1894 2514 2841 3771 5682 7542 8523 17046 396793 793586 1190379 2380758 3571137 7142274