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3074721 = 31378839
BaseRepresentation
bin1011101110101010100001
312210012201120
423232222201
51241342341
6145522453
735064126
oct13565241
95705646
103074721
1118100a1
121043429
13838680
145a074d
1540b066
hex2eeaa1

3074721 has 8 divisors (see below), whose sum is σ = 4415040. Its totient is φ = 1892112.

The previous prime is 3074719. The next prime is 3074723. The reversal of 3074721 is 1274703.

It is an interprime number because it is at equal distance from previous prime (3074719) and next prime (3074723).

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

It is not a de Polignac number, because 3074721 - 21 = 3074719 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 3074691 and 3074700.

It is not an unprimeable number, because it can be changed into a prime (3074723) 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, 39381 + ... + 39458.

It is an arithmetic number, because the mean of its divisors is an integer number (551880).

Almost surely, 23074721 is an apocalyptic number.

It is an amenable number.

3074721 is a deficient number, since it is larger than the sum of its proper divisors (1340319).

3074721 is a wasteful number, since it uses less digits than its factorization.

3074721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78855.

The product of its (nonzero) digits is 1176, while the sum is 24.

The square root of 3074721 is about 1753.4882377706. The cubic root of 3074721 is about 145.4125547706.

The spelling of 3074721 in words is "three million, seventy-four thousand, seven hundred twenty-one".

Divisors: 1 3 13 39 78839 236517 1024907 3074721