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70305676 = 227171271163
BaseRepresentation
bin1000011000011…
…00011110001100
311220021220020221
410030030132030
5120444240201
610550521124
71512405550
oct414143614
9156256227
1070305676
113675a771
121b6661a4
13117479bc
1494a1860
15628b4a1
hex430c78c

70305676 has 48 divisors (see below), whose sum is σ = 150183936. Its totient is φ = 28111104.

The previous prime is 70305671. The next prime is 70305679. The reversal of 70305676 is 67650307.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (70305671) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 59871 + ... + 61033.

It is an arithmetic number, because the mean of its divisors is an integer number (3128832).

Almost surely, 270305676 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 70305676, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75091968).

70305676 is an abundant number, since it is smaller than the sum of its proper divisors (79878260).

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

70305676 is a wasteful number, since it uses less digits than its factorization.

70305676 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1318 (or 1316 counting only the distinct ones).

The product of its (nonzero) digits is 26460, while the sum is 34.

The square root of 70305676 is about 8384.8480010075. The cubic root of 70305676 is about 412.7275531752.

The spelling of 70305676 in words is "seventy million, three hundred five thousand, six hundred seventy-six".

Divisors: 1 2 4 7 14 17 28 34 68 119 127 238 254 476 508 889 1163 1778 2159 2326 3556 4318 4652 8141 8636 15113 16282 19771 30226 32564 39542 60452 79084 138397 147701 276794 295402 553588 590804 1033907 2067814 2510917 4135628 5021834 10043668 17576419 35152838 70305676