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65069642 = 21117199157
BaseRepresentation
bin1111100000111…
…0001001001010
311112102212202202
43320032021022
5113124212032
610242400202
71420040261
oct370161112
9145385682
1065069642
1133803870
1219960062
1310633661
1488db5d8
155aa4d62
hex3e0e24a

65069642 has 32 divisors (see below), whose sum is σ = 118687680. Its totient is φ = 26369280.

The previous prime is 65069629. The next prime is 65069647. The reversal of 65069642 is 24696056.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a junction number, because it is equal to n+sod(n) for n = 65069596 and 65069605.

It is not an unprimeable number, because it can be changed into a prime (65069647) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2528 + ... + 11684.

It is an arithmetic number, because the mean of its divisors is an integer number (3708990).

Almost surely, 265069642 is an apocalyptic number.

65069642 is a deficient number, since it is larger than the sum of its proper divisors (53618038).

65069642 is a wasteful number, since it uses less digits than its factorization.

65069642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9206.

The product of its (nonzero) digits is 77760, while the sum is 38.

The square root of 65069642 is about 8066.5756055466. The cubic root of 65069642 is about 402.2161201871.

The spelling of 65069642 in words is "sixty-five million, sixty-nine thousand, six hundred forty-two".

Divisors: 1 2 11 17 19 22 34 38 187 209 323 374 418 646 3553 7106 9157 18314 100727 155669 173983 201454 311338 347966 1712359 1913813 2957711 3424718 3827626 5915422 32534821 65069642