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76968100 = 22521126361
BaseRepresentation
bin1001001011001…
…11000010100100
312100211101101101
410211213002210
5124200434400
611345405444
71623134536
oct445470244
9170741341
1076968100
113a4a0300
1221939884
1312c3b371
14a317856
156b5556a
hex49670a4

76968100 has 54 divisors (see below), whose sum is σ = 183613682. Its totient is φ = 27984000.

The previous prime is 76968083. The next prime is 76968119. The reversal of 76968100 is 186967.

It can be written as a sum of positive squares in 3 ways, for example, as 1069156 + 75898944 = 1034^2 + 8712^2 .

It is a super-2 number, since 2×769681002 = 11848176835220000, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 76968100.

It is an unprimeable number.

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 17 ways as a sum of consecutive naturals, for example, 8920 + ... + 15280.

Almost surely, 276968100 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 76968100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (91806841).

76968100 is an abundant number, since it is smaller than the sum of its proper divisors (106645582).

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

76968100 is a wasteful number, since it uses less digits than its factorization.

76968100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6397 (or 6379 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 37.

The square root of 76968100 is about 8773.1465278998. The cubic root of 76968100 is about 425.3733282512.

The spelling of 76968100 in words is "seventy-six million, nine hundred sixty-eight thousand, one hundred".

Divisors: 1 2 4 5 10 11 20 22 25 44 50 55 100 110 121 220 242 275 484 550 605 1100 1210 2420 3025 6050 6361 12100 12722 25444 31805 63610 69971 127220 139942 159025 279884 318050 349855 636100 699710 769681 1399420 1539362 1749275 3078724 3498550 3848405 6997100 7696810 15393620 19242025 38484050 76968100