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8472738 = 236412203
BaseRepresentation
bin100000010100…
…100010100010
3120221110102010
4200110202202
54132111423
6501333350
7132005601
oct40244242
916843363
108472738
11486776a
122a07256
1319a8671
1411a7a38
15b25693
hex8148a2

8472738 has 16 divisors (see below), whose sum is σ = 16979616. Its totient is φ = 2818560.

The previous prime is 8472733. The next prime is 8472743. The reversal of 8472738 is 8372748.

It is an interprime number because it is at equal distance from previous prime (8472733) and next prime (8472743).

It is a junction number, because it is equal to n+sod(n) for n = 8472696 and 8472705.

It is not an unprimeable number, because it can be changed into a prime (8472733) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2745 + ... + 4947.

It is an arithmetic number, because the mean of its divisors is an integer number (1061226).

Almost surely, 28472738 is an apocalyptic number.

8472738 is an abundant number, since it is smaller than the sum of its proper divisors (8506878).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8472738 is a wasteful number, since it uses less digits than its factorization.

8472738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2849.

The product of its digits is 75264, while the sum is 39.

The square root of 8472738 is about 2910.7967981293. The cubic root of 8472738 is about 203.8643369454.

The spelling of 8472738 in words is "eight million, four hundred seventy-two thousand, seven hundred thirty-eight".

Divisors: 1 2 3 6 641 1282 1923 2203 3846 4406 6609 13218 1412123 2824246 4236369 8472738