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54880290 = 2325609781
BaseRepresentation
bin1101000101011…
…0100000100010
310211021012121100
43101112200202
5103022132130
65240135230
71234321563
oct321264042
9124235540
1054880290
1128a84413
1216467516
13b4a685a
14740816a
154c40c60
hex3456822

54880290 has 24 divisors (see below), whose sum is σ = 142688988. Its totient is φ = 14634720.

The previous prime is 54880289. The next prime is 54880291. The reversal of 54880290 is 9208845.

It is an interprime number because it is at equal distance from previous prime (54880289) and next prime (54880291).

It can be written as a sum of positive squares in 2 ways, for example, as 54863649 + 16641 = 7407^2 + 129^2 .

It is not an unprimeable number, because it can be changed into a prime (54880291) 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, 304801 + ... + 304980.

Almost surely, 254880290 is an apocalyptic number.

54880290 is an abundant number, since it is smaller than the sum of its proper divisors (87808698).

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

54880290 is a wasteful number, since it uses less digits than its factorization.

54880290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 609794 (or 609791 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 36.

The square root of 54880290 is about 7408.1232441152. The cubic root of 54880290 is about 380.0191356938.

The spelling of 54880290 in words is "fifty-four million, eight hundred eighty thousand, two hundred ninety".

Divisors: 1 2 3 5 6 9 10 15 18 30 45 90 609781 1219562 1829343 3048905 3658686 5488029 6097810 9146715 10976058 18293430 27440145 54880290