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61021514 = 247836379
BaseRepresentation
bin1110100011000…
…1110101001010
311020211012210002
43220301311022
5111110142024
610015523002
71340450201
oct350616512
9136735702
1061021514
1131499404
1218529462
13c846c08
148166238
1555556ae
hex3a31d4a

61021514 has 8 divisors (see below), whose sum is σ = 91565760. Its totient is φ = 30499596.

The previous prime is 61021511. The next prime is 61021529. The reversal of 61021514 is 41512016.

61021514 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a plaindrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (61021511) 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, 6377 + ... + 12755.

It is an arithmetic number, because the mean of its divisors is an integer number (11445720).

Almost surely, 261021514 is an apocalyptic number.

61021514 is a deficient number, since it is larger than the sum of its proper divisors (30544246).

61021514 is a wasteful number, since it uses less digits than its factorization.

61021514 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11164.

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 61021514 is about 7811.6268472067. The cubic root of 61021514 is about 393.6959914501.

The spelling of 61021514 in words is "sixty-one million, twenty-one thousand, five hundred fourteen".

Divisors: 1 2 4783 6379 9566 12758 30510757 61021514