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70740000 = 253354131
BaseRepresentation
bin1000011011101…
…10100000100000
311221002222001000
410031312200200
5121102140000
611004112000
71516165032
oct415664040
9157088030
1070740000
1136a27011
121b835600
131186a5b6
149575c52
156325000
hex4376820

70740000 has 240 divisors, whose sum is σ = 259791840. Its totient is φ = 18720000.

The previous prime is 70739917. The next prime is 70740023. The reversal of 70740000 is 4707.

It is a tau number, because it is divible by the number of its divisors (240).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 539935 + ... + 540065.

It is an arithmetic number, because the mean of its divisors is an integer number (1082466).

Almost surely, 270740000 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 70740000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (129895920).

70740000 is an abundant number, since it is smaller than the sum of its proper divisors (189051840).

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

70740000 is a wasteful number, since it uses less digits than its factorization.

70740000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170 (or 141 counting only the distinct ones).

The product of its (nonzero) digits is 196, while the sum is 18.

The square root of 70740000 is about 8410.7074613257. The cubic root of 70740000 is about 413.5757047686.

Adding to 70740000 its reverse (4707), we get a palindrome (70744707).

The spelling of 70740000 in words is "seventy million, seven hundred forty thousand".