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507906 = 232729139
BaseRepresentation
bin1111100000000000010
3221210201100
41330000002
5112223111
614515230
74213530
oct1740002
9853640
10507906
11317663
12205b16
1314a249
14d3150
15a0756
hex7c002

507906 has 48 divisors (see below), whose sum is σ = 1310400. Its totient is φ = 139104.

The previous prime is 507901. The next prime is 507907. The reversal of 507906 is 609705.

507906 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 507906.

It is not an unprimeable number, because it can be changed into a prime (507901) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3585 + ... + 3723.

It is an arithmetic number, because the mean of its divisors is an integer number (27300).

2507906 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 507906, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (655200).

507906 is an abundant number, since it is smaller than the sum of its proper divisors (802494).

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

507906 is a wasteful number, since it uses less digits than its factorization.

507906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183 (or 180 counting only the distinct ones).

The product of its (nonzero) digits is 1890, while the sum is 27.

The square root of 507906 is about 712.6752416073. The cubic root of 507906 is about 79.7861999616.

Adding to 507906 its product of nonzero digits (1890), we get a square (509796 = 7142).

The spelling of 507906 in words is "five hundred seven thousand, nine hundred six".

Divisors: 1 2 3 6 7 9 14 18 21 29 42 58 63 87 126 139 174 203 261 278 406 417 522 609 834 973 1218 1251 1827 1946 2502 2919 3654 4031 5838 8062 8757 12093 17514 24186 28217 36279 56434 72558 84651 169302 253953 507906