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70186492 = 22433891049
BaseRepresentation
bin1000010111011…
…11010111111100
311220001211202201
410023233113330
5120431431432
610544201244
71511401225
oct413572774
9156054681
1070186492
1136689172
121b609224
131170568c
14947024c
156265ee7
hex42ef5fc

70186492 has 24 divisors (see below), whose sum is σ = 126126000. Its totient is φ = 34156416.

The previous prime is 70186483. The next prime is 70186531. The reversal of 70186492 is 29468107.

It is a super-2 number, since 2×701864922 = 9852287318532128, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66384 + ... + 67432.

It is an arithmetic number, because the mean of its divisors is an integer number (5255250).

Almost surely, 270186492 is an apocalyptic number.

It is an amenable number.

70186492 is a deficient number, since it is larger than the sum of its proper divisors (55939508).

70186492 is a wasteful number, since it uses less digits than its factorization.

70186492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1485 (or 1483 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 37.

The square root of 70186492 is about 8377.7378808363. The cubic root of 70186492 is about 412.4941991226.

The spelling of 70186492 in words is "seventy million, one hundred eighty-six thousand, four hundred ninety-two".

Divisors: 1 2 4 43 86 172 389 778 1049 1556 2098 4196 16727 33454 45107 66908 90214 180428 408061 816122 1632244 17546623 35093246 70186492