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74045454 = 2371762987
BaseRepresentation
bin1000110100111…
…01100000001110
312011022220021020
410122131200032
5122423423304
611203015010
71556242650
oct432354016
9164286236
1074045454
113888449a
122096a466
1312456ca2
149b966d0
1567795d9
hex469d80e

74045454 has 16 divisors (see below), whose sum is σ = 169246848. Its totient is φ = 21155832.

The previous prime is 74045437. The next prime is 74045459. The reversal of 74045454 is 45454047.

It is a super-2 number, since 2×740454542 = 10965458516132232, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74045459) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 881452 + ... + 881535.

It is an arithmetic number, because the mean of its divisors is an integer number (10577928).

Almost surely, 274045454 is an apocalyptic number.

74045454 is an abundant number, since it is smaller than the sum of its proper divisors (95201394).

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

74045454 is a wasteful number, since it uses less digits than its factorization.

74045454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1762999.

The product of its (nonzero) digits is 44800, while the sum is 33.

The square root of 74045454 is about 8604.9668215514. The cubic root of 74045454 is about 419.9195877800.

The spelling of 74045454 in words is "seventy-four million, forty-five thousand, four hundred fifty-four".

Divisors: 1 2 3 6 7 14 21 42 1762987 3525974 5288961 10577922 12340909 24681818 37022727 74045454