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70061760 = 263551753
BaseRepresentation
bin1000010110100…
…00111011000000
311212211111200000
410023100323000
5120413434020
610541400000
71510341456
oct413207300
9155744600
1070061760
113660348a
121b569000
1311690982
14943a9d6
15623e090
hex42d0ec0

70061760 has 336 divisors, whose sum is σ = 269601696. Its totient is φ = 17252352.

The previous prime is 70061723. The next prime is 70061773. The reversal of 70061760 is 6716007.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1321894 + ... + 1321946.

It is an arithmetic number, because the mean of its divisors is an integer number (802386).

Almost surely, 270061760 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 70061760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (134800848).

70061760 is an abundant number, since it is smaller than the sum of its proper divisors (199539936).

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

70061760 is a wasteful number, since it uses less digits than its factorization.

70061760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102 (or 80 counting only the distinct ones).

The product of its (nonzero) digits is 1764, while the sum is 27.

The square root of 70061760 is about 8370.2903175457. The cubic root of 70061760 is about 412.2496993906.

Adding to 70061760 its reverse (6716007), we get a palindrome (76777767).

The spelling of 70061760 in words is "seventy million, sixty-one thousand, seven hundred sixty".