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70189448 = 2378315101
BaseRepresentation
bin1000010111100…
…00000110001000
311220001222211012
410023300012020
5120432030243
610544223052
71511412650
oct413600610
9156058735
1070189448
113669040a
121b60aa88
1311706b24
149471360
156266d18
hex42f0188

70189448 has 32 divisors (see below), whose sum is σ = 152228160. Its totient is φ = 29716800.

The previous prime is 70189433. The next prime is 70189451. The reversal of 70189448 is 84498107.

It is a happy number.

It is a super-2 number, since 2×701894482 = 9853117221089408, which contains 22 as substring.

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, 2903 + ... + 12198.

It is an arithmetic number, because the mean of its divisors is an integer number (4757130).

Almost surely, 270189448 is an apocalyptic number.

It is an amenable number.

70189448 is an abundant number, since it is smaller than the sum of its proper divisors (82038712).

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

70189448 is a wasteful number, since it uses less digits than its factorization.

70189448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15197 (or 15193 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 41.

The square root of 70189448 is about 8377.9142989171. The cubic root of 70189448 is about 412.4999899602.

The spelling of 70189448 in words is "seventy million, one hundred eighty-nine thousand, four hundred forty-eight".

Divisors: 1 2 4 7 8 14 28 56 83 166 332 581 664 1162 2324 4648 15101 30202 60404 105707 120808 211414 422828 845656 1253383 2506766 5013532 8773681 10027064 17547362 35094724 70189448