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61300669 = 1961227233
BaseRepresentation
bin1110100111010…
…1111110111101
311021100101201011
43221311332331
5111143110134
610025515221
71343022103
oct351657675
9137311634
1061300669
113166a111
1218642b11
13c913cb1
1481d9c73
1555ad264
hex3a75fbd

61300669 has 16 divisors (see below), whose sum is σ = 66156480. Its totient is φ = 56626560.

The previous prime is 61300667. The next prime is 61300697. The reversal of 61300669 is 96600316.

It is a cyclic number.

It is not a de Polignac number, because 61300669 - 21 = 61300667 is a prime.

It is a super-2 number, since 2×613006692 = 7515544039695122, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 61300669.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61300661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 262977 + ... + 263209.

It is an arithmetic number, because the mean of its divisors is an integer number (4134780).

Almost surely, 261300669 is an apocalyptic number.

It is an amenable number.

61300669 is a deficient number, since it is larger than the sum of its proper divisors (4855811).

61300669 is a wasteful number, since it uses less digits than its factorization.

61300669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 540.

The product of its (nonzero) digits is 5832, while the sum is 31.

The square root of 61300669 is about 7829.4743757164. The cubic root of 61300669 is about 394.2954250604.

The spelling of 61300669 in words is "sixty-one million, three hundred thousand, six hundred sixty-nine".

Divisors: 1 19 61 227 233 1159 4313 4427 13847 14213 52891 263093 270047 1004929 3226351 61300669