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74047663 = 671397951
BaseRepresentation
bin1000110100111…
…10000010101111
312011100000022001
410122132002233
5122424011123
611203033131
71556252254
oct432360257
9164300261
1074047663
1138886118
122096b7a7
1312457cb1
149b9742b
15677a0ad
hex469e0af

74047663 has 8 divisors (see below), whose sum is σ = 75703040. Its totient is φ = 72408600.

The previous prime is 74047651. The next prime is 74047667. The reversal of 74047663 is 36674047.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-74047663 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74047667) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5338 + ... + 13288.

It is an arithmetic number, because the mean of its divisors is an integer number (9462880).

Almost surely, 274047663 is an apocalyptic number.

74047663 is a deficient number, since it is larger than the sum of its proper divisors (1655377).

74047663 is a wasteful number, since it uses less digits than its factorization.

74047663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8157.

The product of its (nonzero) digits is 84672, while the sum is 37.

The square root of 74047663 is about 8605.0951766962. The cubic root of 74047663 is about 419.9237635626.

The spelling of 74047663 in words is "seventy-four million, forty-seven thousand, six hundred sixty-three".

Divisors: 1 67 139 7951 9313 532717 1105189 74047663