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61214242 = 242172701
BaseRepresentation
bin1110100110000…
…0111000100010
311021012000011011
43221200320202
5111132323432
610024011134
71342212115
oct351407042
9137160134
1061214242
1131610191
1218600aaa
13c8b385b
1481b657c
155592847
hex3a60e22

61214242 has 8 divisors (see below), whose sum is σ = 92040732. Its totient is φ = 30534000.

The previous prime is 61214233. The next prime is 61214261. The reversal of 61214242 is 24241216.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 54037201 + 7177041 = 7351^2 + 2679^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35509 + ... + 37192.

Almost surely, 261214242 is an apocalyptic number.

61214242 is a deficient number, since it is larger than the sum of its proper divisors (30826490).

61214242 is a wasteful number, since it uses less digits than its factorization.

61214242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73124.

The product of its digits is 768, while the sum is 22.

The square root of 61214242 is about 7823.9530929064. The cubic root of 61214242 is about 394.1100339432.

Adding to 61214242 its reverse (24241216), we get a palindrome (85455458).

The spelling of 61214242 in words is "sixty-one million, two hundred fourteen thousand, two hundred forty-two".

Divisors: 1 2 421 842 72701 145402 30607121 61214242