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8722413 = 327138451
BaseRepresentation
bin100001010001…
…011111101101
3121102010220100
4201101133231
54213104123
6510541313
7134065530
oct41213755
917363810
108722413
114a18307
122b07839
131a651bb
141230a17
15b74643
hex8517ed

8722413 has 12 divisors (see below), whose sum is σ = 14399008. Its totient is φ = 4984200.

The previous prime is 8722409. The next prime is 8722423. The reversal of 8722413 is 3142278.

It is not a de Polignac number, because 8722413 - 22 = 8722409 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8722423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 69163 + ... + 69288.

Almost surely, 28722413 is an apocalyptic number.

It is an amenable number.

8722413 is a deficient number, since it is larger than the sum of its proper divisors (5676595).

8722413 is a wasteful number, since it uses less digits than its factorization.

8722413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138464 (or 138461 counting only the distinct ones).

The product of its digits is 2688, while the sum is 27.

The square root of 8722413 is about 2953.3731562402. The cubic root of 8722413 is about 205.8474771961.

It can be divided in two parts, 87 and 22413, that added together give a square (22500 = 1502).

The spelling of 8722413 in words is "eight million, seven hundred twenty-two thousand, four hundred thirteen".

Divisors: 1 3 7 9 21 63 138451 415353 969157 1246059 2907471 8722413