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52305812 = 22137191399
BaseRepresentation
bin1100011110000…
…1111110010100
310122102102002022
43013201332110
5101342241222
65105032312
71203410036
oct307417624
9118372068
1052305812
1127586149
1215625698
13aab4ab0
146d37c56
1548d3042
hex31e1f94

52305812 has 24 divisors (see below), whose sum is σ = 98784000. Its totient is φ = 24090336.

The previous prime is 52305767. The next prime is 52305817. The reversal of 52305812 is 21850325.

It is a Harshad number since it is a multiple of its sum of digits (26).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52305817) 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, 36689 + ... + 38087.

It is an arithmetic number, because the mean of its divisors is an integer number (4116000).

Almost surely, 252305812 is an apocalyptic number.

52305812 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

52305812 is a deficient number, since it is larger than the sum of its proper divisors (46478188).

52305812 is a wasteful number, since it uses less digits than its factorization.

52305812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2135 (or 2133 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 26.

The square root of 52305812 is about 7232.2757137709. The cubic root of 52305812 is about 373.9813825844.

The spelling of 52305812 in words is "fifty-two million, three hundred five thousand, eight hundred twelve".

Divisors: 1 2 4 13 26 52 719 1399 1438 2798 2876 5596 9347 18187 18694 36374 37388 72748 1005881 2011762 4023524 13076453 26152906 52305812