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74705454 = 23219218437
BaseRepresentation
bin1000111001111…
…10101000101110
312012120102121200
410130332220232
5123111033304
611225110330
71564662105
oct434765056
9165512550
1074705454
113919534a
12210283a6
1312628515
149cc903c
156859e39
hex473ea2e

74705454 has 24 divisors (see below), whose sum is σ = 170381640. Its totient is φ = 23591088.

The previous prime is 74705453. The next prime is 74705459. The reversal of 74705454 is 45450747.

It is a super-2 number, since 2×747054542 = 11161809714692232, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74705453) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 108877 + ... + 109560.

It is an arithmetic number, because the mean of its divisors is an integer number (7099235).

Almost surely, 274705454 is an apocalyptic number.

74705454 is an abundant number, since it is smaller than the sum of its proper divisors (95676186).

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

74705454 is a wasteful number, since it uses less digits than its factorization.

74705454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218464 (or 218461 counting only the distinct ones).

The product of its (nonzero) digits is 78400, while the sum is 36.

The square root of 74705454 is about 8643.2316872799. The cubic root of 74705454 is about 421.1635423243.

The spelling of 74705454 in words is "seventy-four million, seven hundred five thousand, four hundred fifty-four".

Divisors: 1 2 3 6 9 18 19 38 57 114 171 342 218437 436874 655311 1310622 1965933 3931866 4150303 8300606 12450909 24901818 37352727 74705454