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70419505 = 5131083377
BaseRepresentation
bin1000011001010…
…00010000110001
311220111200101211
410030220100301
5121011411010
610553200121
71513361452
oct414502061
9156450354
1070419505
1136828242
121b700041
1311787760
1494d1129
1562b008a
hex4328431

70419505 has 8 divisors (see below), whose sum is σ = 91003752. Its totient is φ = 52002048.

The previous prime is 70419499. The next prime is 70419553. The reversal of 70419505 is 50591407.

It can be written as a sum of positive squares in 4 ways, for example, as 913936 + 69505569 = 956^2 + 8337^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-70419505 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 541624 + ... + 541753.

It is an arithmetic number, because the mean of its divisors is an integer number (11375469).

Almost surely, 270419505 is an apocalyptic number.

It is an amenable number.

70419505 is a deficient number, since it is larger than the sum of its proper divisors (20584247).

70419505 is a wasteful number, since it uses less digits than its factorization.

70419505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1083395.

The product of its (nonzero) digits is 6300, while the sum is 31.

The square root of 70419505 is about 8391.6330353513. The cubic root of 70419505 is about 412.9501764182.

The spelling of 70419505 in words is "seventy million, four hundred nineteen thousand, five hundred five".

Divisors: 1 5 13 65 1083377 5416885 14083901 70419505