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70144184 = 23112233311
BaseRepresentation
bin1000010111001…
…01000010111000
311212222200201202
410023211002320
5120424103214
610543233332
71511133665
oct413450270
9155880652
1070144184
113665a400
121b5a8848
13116bc346
14945ca6c
1562586de
hex42e50b8

70144184 has 48 divisors (see below), whose sum is σ = 145650960. Its totient is φ = 31644800.

The previous prime is 70144169. The next prime is 70144187. The reversal of 70144184 is 48144107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70144187) 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 11 ways as a sum of consecutive naturals, for example, 225389 + ... + 225699.

It is an arithmetic number, because the mean of its divisors is an integer number (3034395).

Almost surely, 270144184 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 70144184, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72825480).

70144184 is an abundant number, since it is smaller than the sum of its proper divisors (75506776).

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

70144184 is a wasteful number, since it uses less digits than its factorization.

70144184 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 572 (or 557 counting only the distinct ones).

The product of its (nonzero) digits is 3584, while the sum is 29.

The square root of 70144184 is about 8375.2124749167. The cubic root of 70144184 is about 412.4112994465.

The spelling of 70144184 in words is "seventy million, one hundred forty-four thousand, one hundred eighty-four".

Divisors: 1 2 4 8 11 22 44 88 121 233 242 311 466 484 622 932 968 1244 1864 2488 2563 3421 5126 6842 10252 13684 20504 27368 28193 37631 56386 72463 75262 112772 144926 150524 225544 289852 301048 579704 797093 1594186 3188372 6376744 8768023 17536046 35072092 70144184