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76818252 = 22372339761
BaseRepresentation
bin1001001010000…
…10011101001100
312100112202211110
410211002131030
5124131141002
611342252020
71621641630
oct445023514
9170482743
1076818252
113a3a8765
1221887010
1312bb80b4
14a2b8dc0
156b25e6c
hex494274c

76818252 has 48 divisors (see below), whose sum is σ = 213760512. Its totient is φ = 20993280.

The previous prime is 76818251. The next prime is 76818271. The reversal of 76818252 is 25281867.

It is a self number, because there is not a number n which added to its sum of digits gives 76818252.

It is not an unprimeable number, because it can be changed into a prime (76818251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17949 + ... + 21812.

It is an arithmetic number, because the mean of its divisors is an integer number (4453344).

Almost surely, 276818252 is an apocalyptic number.

It is an amenable number.

76818252 is an abundant number, since it is smaller than the sum of its proper divisors (136942260).

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

76818252 is a wasteful number, since it uses less digits than its factorization.

76818252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39798 (or 39796 counting only the distinct ones).

The product of its digits is 53760, while the sum is 39.

The square root of 76818252 is about 8764.6022157312. The cubic root of 76818252 is about 425.0970979993.

It can be divided in two parts, 768 and 18252, that multiplied together give a square (14017536 = 37442).

The spelling of 76818252 in words is "seventy-six million, eight hundred eighteen thousand, two hundred fifty-two".

Divisors: 1 2 3 4 6 7 12 14 21 23 28 42 46 69 84 92 138 161 276 322 483 644 966 1932 39761 79522 119283 159044 238566 278327 477132 556654 834981 914503 1113308 1669962 1829006 2743509 3339924 3658012 5487018 6401521 10974036 12803042 19204563 25606084 38409126 76818252