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55210074 = 23231073739
BaseRepresentation
bin1101001010011…
…1000001011010
310211212221222120
43102213001122
5103113210244
65251202110
71240164213
oct322470132
9124787876
1055210074
112918a167
12165a6336
13b5909aa
14749240a
154ca8819
hex34a705a

55210074 has 32 divisors (see below), whose sum is σ = 116328960. Its totient is φ = 17434032.

The previous prime is 55210073. The next prime is 55210087. The reversal of 55210074 is 47001255.

It is not an unprimeable number, because it can be changed into a prime (55210073) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12897 + ... + 16635.

It is an arithmetic number, because the mean of its divisors is an integer number (3635280).

Almost surely, 255210074 is an apocalyptic number.

55210074 is an abundant number, since it is smaller than the sum of its proper divisors (61118886).

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

55210074 is a wasteful number, since it uses less digits than its factorization.

55210074 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3874.

The product of its (nonzero) digits is 1400, while the sum is 24.

The square root of 55210074 is about 7430.3481748839. The cubic root of 55210074 is about 380.7788136193.

The spelling of 55210074 in words is "fifty-five million, two hundred ten thousand, seventy-four".

Divisors: 1 2 3 6 23 46 69 107 138 214 321 642 2461 3739 4922 7383 7478 11217 14766 22434 85997 171994 257991 400073 515982 800146 1200219 2400438 9201679 18403358 27605037 55210074