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64074213 = 3372192549
BaseRepresentation
bin1111010001101…
…1000111100101
311110120022022000
43310123013211
5112400333323
610205155513
71405423200
oct364330745
9143508260
1064074213
11331939a5
121955bb99
1310375548
14871c937
155959e43
hex3d1b1e5

64074213 has 48 divisors (see below), whose sum is σ = 116280000. Its totient is φ = 34673184.

The previous prime is 64074211. The next prime is 64074221. The reversal of 64074213 is 31247046.

64074213 is a `hidden beast` number, since 640 + 7 + 4 + 2 + 13 = 666.

It is not a de Polignac number, because 64074213 - 21 = 64074211 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64074211) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 23863 + ... + 26411.

It is an arithmetic number, because the mean of its divisors is an integer number (2422500).

Almost surely, 264074213 is an apocalyptic number.

64074213 is a gapful number since it is divisible by the number (63) formed by its first and last digit.

It is an amenable number.

64074213 is a deficient number, since it is larger than the sum of its proper divisors (52205787).

64074213 is a wasteful number, since it uses less digits than its factorization.

64074213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2591 (or 2578 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 27.

The square root of 64074213 is about 8004.6369686576. The cubic root of 64074213 is about 400.1545506942.

The spelling of 64074213 in words is "sixty-four million, seventy-four thousand, two hundred thirteen".

Divisors: 1 3 7 9 19 21 27 49 57 63 133 147 171 189 399 441 513 931 1197 1323 2549 2793 3591 7647 8379 17843 22941 25137 48431 53529 68823 124901 145293 160587 339017 374703 435879 481761 1017051 1124109 1307637 2373119 3051153 3372327 7119357 9153459 21358071 64074213