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64474330 = 257388321
BaseRepresentation
bin1111010111110…
…0110011011010
311111022122011011
43311330303122
5113001134310
610221524134
71412010544
oct365746332
9144278134
1064474330
1133437578
121971364a
13104856bb
1487c4694
1559d878a
hex3d7ccda

64474330 has 16 divisors (see below), whose sum is σ = 117644904. Its totient is φ = 25436160.

The previous prime is 64474321. The next prime is 64474363. The reversal of 64474330 is 3347446.

It can be written as a sum of positive squares in 4 ways, for example, as 62869041 + 1605289 = 7929^2 + 1267^2 .

It is a junction number, because it is equal to n+sod(n) for n = 64474292 and 64474301.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43431 + ... + 44890.

Almost surely, 264474330 is an apocalyptic number.

64474330 is a deficient number, since it is larger than the sum of its proper divisors (53170574).

64474330 is a wasteful number, since it uses less digits than its factorization.

64474330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88401.

The product of its (nonzero) digits is 24192, while the sum is 31.

The square root of 64474330 is about 8029.5908986697. The cubic root of 64474330 is about 400.9857562161.

The spelling of 64474330 in words is "sixty-four million, four hundred seventy-four thousand, three hundred thirty".

Divisors: 1 2 5 10 73 146 365 730 88321 176642 441605 883210 6447433 12894866 32237165 64474330