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70495120 = 245899901
BaseRepresentation
bin1000011001110…
…10101110010000
311220122112010101
410030322232100
5121021320440
610554542144
71514125063
oct414725620
9156575111
1070495120
113687a033
121b737954
13117b2cb7
1495108da
1562c769a
hex433ab90

70495120 has 40 divisors (see below), whose sum is σ = 165759480. Its totient is φ = 27878400.

The previous prime is 70495109. The next prime is 70495123. The reversal of 70495120 is 2159407.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 13220496 + 57274624 = 3636^2 + 7568^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (70495123) 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, 2170 + ... + 12070.

It is an arithmetic number, because the mean of its divisors is an integer number (4143987).

Almost surely, 270495120 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 70495120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82879740).

70495120 is an abundant number, since it is smaller than the sum of its proper divisors (95264360).

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

70495120 is a wasteful number, since it uses less digits than its factorization.

70495120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10003 (or 9997 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 28.

The square root of 70495120 is about 8396.1372070733. The cubic root of 70495120 is about 413.0979293167.

The spelling of 70495120 in words is "seventy million, four hundred ninety-five thousand, one hundred twenty".

Divisors: 1 2 4 5 8 10 16 20 40 80 89 178 356 445 712 890 1424 1780 3560 7120 9901 19802 39604 49505 79208 99010 158416 198020 396040 792080 881189 1762378 3524756 4405945 7049512 8811890 14099024 17623780 35247560 70495120