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61055080 = 2351526377
BaseRepresentation
bin1110100011101…
…0000001101000
311020212220211021
43220322001220
5111112230310
610020342224
71340650102
oct350720150
9136786737
1061055080
1131511649
1218544974
13c859288
148174572
1555605da
hex3a3a068

61055080 has 16 divisors (see below), whose sum is σ = 137374020. Its totient is φ = 24422016.

The previous prime is 61055051. The next prime is 61055081. The reversal of 61055080 is 8055016.

It can be written as a sum of positive squares in 2 ways, for example, as 55323844 + 5731236 = 7438^2 + 2394^2 .

It is not an unprimeable number, because it can be changed into a prime (61055081) by changing a digit.

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, 763149 + ... + 763228.

Almost surely, 261055080 is an apocalyptic number.

It is an amenable number.

61055080 is an abundant number, since it is smaller than the sum of its proper divisors (76318940).

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

61055080 is a wasteful number, since it uses less digits than its factorization.

61055080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1526388 (or 1526384 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 25.

The square root of 61055080 is about 7813.7750159574. The cubic root of 61055080 is about 393.7681647789.

The spelling of 61055080 in words is "sixty-one million, fifty-five thousand, eighty".

Divisors: 1 2 4 5 8 10 20 40 1526377 3052754 6105508 7631885 12211016 15263770 30527540 61055080