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8125516 = 227521557
BaseRepresentation
bin11110111111110001001100
3120021211010001
4132333301030
54040004031
6450054044
7126031360
oct36776114
916254101
108125516
11464a903
12287a324
1318b65c9
1411172a0
15aa7861
hex7bfc4c

8125516 has 24 divisors (see below), whose sum is σ = 16311456. Its totient is φ = 3469440.

The previous prime is 8125511. The next prime is 8125517. The reversal of 8125516 is 6155218.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is not an unprimeable number, because it can be changed into a prime (8125511) 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, 14310 + ... + 14866.

It is an arithmetic number, because the mean of its divisors is an integer number (679644).

Almost surely, 28125516 is an apocalyptic number.

It is an amenable number.

8125516 is an abundant number, since it is smaller than the sum of its proper divisors (8185940).

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

8125516 is a wasteful number, since it uses less digits than its factorization.

8125516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1089 (or 1087 counting only the distinct ones).

The product of its digits is 2400, while the sum is 28.

The square root of 8125516 is about 2850.5290736984. The cubic root of 8125516 is about 201.0405436229.

It can be divided in two parts, 812 and 5516, that added together give a triangular number (6328 = T112).

The spelling of 8125516 in words is "eight million, one hundred twenty-five thousand, five hundred sixteen".

Divisors: 1 2 4 7 14 28 521 557 1042 1114 2084 2228 3647 3899 7294 7798 14588 15596 290197 580394 1160788 2031379 4062758 8125516