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61234120 = 2351530853
BaseRepresentation
bin1110100110010…
…1101111001000
311021020000102101
43221211233020
5111133442440
610024243144
71342324063
oct351455710
9137200371
1061234120
1131624112
12186104b4
13c8bc90c
1481bd8da
15559869a
hex3a65bc8

61234120 has 16 divisors (see below), whose sum is σ = 137776860. Its totient is φ = 24493632.

The previous prime is 61234039. The next prime is 61234123. The reversal of 61234120 is 2143216.

It can be written as a sum of positive squares in 2 ways, for example, as 53494596 + 7739524 = 7314^2 + 2782^2 .

It is not an unprimeable number, because it can be changed into a prime (61234123) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 765387 + ... + 765466.

Almost surely, 261234120 is an apocalyptic number.

It is an amenable number.

61234120 is an abundant number, since it is smaller than the sum of its proper divisors (76542740).

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

61234120 is a wasteful number, since it uses less digits than its factorization.

61234120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1530864 (or 1530860 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 61234120 is about 7825.2233194970. The cubic root of 61234120 is about 394.1526888939.

Adding to 61234120 its reverse (2143216), we get a palindrome (63377336).

The spelling of 61234120 in words is "sixty-one million, two hundred thirty-four thousand, one hundred twenty".

Divisors: 1 2 4 5 8 10 20 40 1530853 3061706 6123412 7654265 12246824 15308530 30617060 61234120