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70266028 = 22719269491
BaseRepresentation
bin1000011000000…
…10110010101100
311220012212212111
410030002302230
5120442003103
610550013404
71512152140
oct414026254
9156185774
1070266028
11367329a8
121b647264
1311732941
149491220
15627e86d
hex4302cac

70266028 has 48 divisors (see below), whose sum is σ = 148780800. Its totient is φ = 28365120.

The previous prime is 70266019. The next prime is 70266037. The reversal of 70266028 is 82066207.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (70266019) and next prime (70266037).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 142863 + ... + 143353.

It is an arithmetic number, because the mean of its divisors is an integer number (3099600).

Almost surely, 270266028 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 70266028, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (74390400).

70266028 is an abundant number, since it is smaller than the sum of its proper divisors (78514772).

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

70266028 is a wasteful number, since it uses less digits than its factorization.

70266028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 790 (or 788 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 70266028 is about 8382.4834029063. The cubic root of 70266028 is about 412.6499544189.

The spelling of 70266028 in words is "seventy million, two hundred sixty-six thousand, twenty-eight".

Divisors: 1 2 4 7 14 19 28 38 76 133 266 269 491 532 538 982 1076 1883 1964 3437 3766 5111 6874 7532 9329 10222 13748 18658 20444 35777 37316 65303 71554 130606 132079 143108 261212 264158 528316 924553 1849106 2509501 3698212 5019002 10038004 17566507 35133014 70266028