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76680340 = 22511348547
BaseRepresentation
bin1001001001000…
…00110010010100
312100021202122121
410210200302110
5124112232330
611335305324
71620525562
oct444406224
9170252577
1076680340
113a314090
122181b244
1312b6a3a9
14a280a32
156aea17a
hex4920c94

76680340 has 24 divisors (see below), whose sum is σ = 175668192. Its totient is φ = 27883680.

The previous prime is 76680337. The next prime is 76680349. The reversal of 76680340 is 4308667.

It is a junction number, because it is equal to n+sod(n) for n = 76680296 and 76680305.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76680349) 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, 174054 + ... + 174493.

It is an arithmetic number, because the mean of its divisors is an integer number (7319508).

Almost surely, 276680340 is an apocalyptic number.

It is an amenable number.

76680340 is an abundant number, since it is smaller than the sum of its proper divisors (98987852).

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

76680340 is a wasteful number, since it uses less digits than its factorization.

76680340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 348567 (or 348565 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 34.

The square root of 76680340 is about 8756.7311252544. The cubic root of 76680340 is about 424.8425529822.

The spelling of 76680340 in words is "seventy-six million, six hundred eighty thousand, three hundred forty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 220 348547 697094 1394188 1742735 3485470 3834017 6970940 7668034 15336068 19170085 38340170 76680340