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7042553 = 71975107
BaseRepresentation
bin11010110111010111111001
3111020210120022
4122313113321
53300330203
6410540225
7113601140
oct32672771
914223508
107042553
113a801a1
122437675
1315c76bb
14d14757
15941a38
hex6b75f9

7042553 has 8 divisors (see below), whose sum is σ = 8091072. Its totient is φ = 6004656.

The previous prime is 7042523. The next prime is 7042579. The reversal of 7042553 is 3552407.

7042553 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 7042553 - 214 = 7026169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7042523) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1175 + ... + 3932.

It is an arithmetic number, because the mean of its divisors is an integer number (1011384).

Almost surely, 27042553 is an apocalyptic number.

It is an amenable number.

7042553 is a deficient number, since it is larger than the sum of its proper divisors (1048519).

7042553 is a wasteful number, since it uses less digits than its factorization.

7042553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5311.

The product of its (nonzero) digits is 4200, while the sum is 26.

The square root of 7042553 is about 2653.7808877147. The cubic root of 7042553 is about 191.6799590865.

The spelling of 7042553 in words is "seven million, forty-two thousand, five hundred fifty-three".

Divisors: 1 7 197 1379 5107 35749 1006079 7042553