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70297948 = 22721943439
BaseRepresentation
bin1000011000010…
…10100101011100
311220021111122201
410030022211130
5120444013243
610550421244
71512344200
oct414124534
9156244581
1070297948
1136754986
121b661824
1311744326
14949cb00
15628904d
hex430a95c

70297948 has 72 divisors (see below), whose sum is σ = 154492800. Its totient is φ = 27814752.

The previous prime is 70297939. The next prime is 70297949. The reversal of 70297948 is 84979207.

It is a junction number, because it is equal to n+sod(n) for n = 70297898 and 70297907.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70297949) 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 23 ways as a sum of consecutive naturals, for example, 159913 + ... + 160351.

Almost surely, 270297948 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 70297948, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77246400).

70297948 is an abundant number, since it is smaller than the sum of its proper divisors (84194852).

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

70297948 is a wasteful number, since it uses less digits than its factorization.

70297948 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 519 (or 510 counting only the distinct ones).

The product of its (nonzero) digits is 254016, while the sum is 46.

The square root of 70297948 is about 8384.3871570914. The cubic root of 70297948 is about 412.7124302834.

The spelling of 70297948 in words is "seventy million, two hundred ninety-seven thousand, nine hundred forty-eight".

Divisors: 1 2 4 7 14 19 28 38 43 49 76 86 98 133 172 196 266 301 439 532 602 817 878 931 1204 1634 1756 1862 2107 3073 3268 3724 4214 5719 6146 8341 8428 11438 12292 16682 18877 21511 22876 33364 37754 40033 43022 58387 75508 80066 86044 116774 132139 160132 233548 264278 358663 408709 528556 717326 817418 924973 1434652 1634836 1849946 2510641 3699892 5021282 10042564 17574487 35148974 70297948