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61409130 = 2352046971
BaseRepresentation
bin1110101001000…
…0011101101010
311021112220111020
43222100131222
5111210043010
610032113310
71343653236
oct352203552
9137486436
1061409130
1131733652
1218695836
13c951483
1482275c6
1555d0470
hex3a9076a

61409130 has 16 divisors (see below), whose sum is σ = 147381984. Its totient is φ = 16375760.

The previous prime is 61409129. The next prime is 61409141. The reversal of 61409130 is 3190416.

61409130 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 61409130.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 1023456 + ... + 1023515.

It is an arithmetic number, because the mean of its divisors is an integer number (9211374).

Almost surely, 261409130 is an apocalyptic number.

61409130 is an abundant number, since it is smaller than the sum of its proper divisors (85972854).

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

61409130 is a wasteful number, since it uses less digits than its factorization.

61409130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2046981.

The product of its (nonzero) digits is 648, while the sum is 24.

The square root of 61409130 is about 7836.3977693836. The cubic root of 61409130 is about 394.5278340449.

Adding to 61409130 its reverse (3190416), we get a palindrome (64599546).

The spelling of 61409130 in words is "sixty-one million, four hundred nine thousand, one hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 2046971 4093942 6140913 10234855 12281826 20469710 30704565 61409130