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7142061 = 314871601
BaseRepresentation
bin11011001111101010101101
3111102212001210
4123033222231
53312021221
6413025033
7114464223
oct33175255
914385053
107142061
114038a33
122485179
131630a94
14d3cb13
15961276
hex6cfaad

7142061 has 8 divisors (see below), whose sum is σ = 9535104. Its totient is φ = 4755200.

The previous prime is 7142053. The next prime is 7142111. The reversal of 7142061 is 1602417.

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

It is a cyclic number.

It is not a de Polignac number, because 7142061 - 23 = 7142053 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7142011) 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, 3661 + ... + 5261.

It is an arithmetic number, because the mean of its divisors is an integer number (1191888).

Almost surely, 27142061 is an apocalyptic number.

It is an amenable number.

7142061 is a deficient number, since it is larger than the sum of its proper divisors (2393043).

7142061 is a wasteful number, since it uses less digits than its factorization.

7142061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3091.

The product of its (nonzero) digits is 336, while the sum is 21.

The square root of 7142061 is about 2672.4634702836. The cubic root of 7142061 is about 192.5785230897.

Adding to 7142061 its reverse (1602417), we get a palindrome (8744478).

It can be divided in two parts, 714 and 2061, that added together give a triangular number (2775 = T74).

The spelling of 7142061 in words is "seven million, one hundred forty-two thousand, sixty-one".

Divisors: 1 3 1487 1601 4461 4803 2380687 7142061