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61541808 = 2431282121
BaseRepresentation
bin1110101011000…
…0110110110000
311021210122111020
43222300312300
5111223314213
610035015440
71345045116
oct352606660
9137718436
1061541808
11318142a9
121873a580
13c999993
14825dab6
155609923
hex3ab0db0

61541808 has 20 divisors (see below), whose sum is σ = 158983128. Its totient is φ = 20513920.

The previous prime is 61541807. The next prime is 61541839. The reversal of 61541808 is 80814516.

61541808 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a nialpdrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (61541801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 641013 + ... + 641108.

Almost surely, 261541808 is an apocalyptic number.

It is an amenable number.

61541808 is an abundant number, since it is smaller than the sum of its proper divisors (97441320).

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

61541808 is a wasteful number, since it uses less digits than its factorization.

61541808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1282132 (or 1282126 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 33.

The square root of 61541808 is about 7844.8586985363. The cubic root of 61541808 is about 394.8117631115.

The spelling of 61541808 in words is "sixty-one million, five hundred forty-one thousand, eight hundred eight".