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54909500 = 2253109819
BaseRepresentation
bin1101000101110…
…1101000111100
310211022200200012
43101131220330
5103024101000
65240522352
71234503002
oct321355074
9124280605
1054909500
1128aa4358
12164803b8
13b4b6c39
147414a72
154c49735
hex345da3c

54909500 has 24 divisors (see below), whose sum is σ = 119923440. Its totient is φ = 21963600.

The previous prime is 54909457. The next prime is 54909509. The reversal of 54909500 is 590945.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54909509) 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, 54410 + ... + 55409.

It is an arithmetic number, because the mean of its divisors is an integer number (4996810).

Almost surely, 254909500 is an apocalyptic number.

54909500 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

54909500 is an abundant number, since it is smaller than the sum of its proper divisors (65013940).

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

54909500 is a wasteful number, since it uses less digits than its factorization.

54909500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109838 (or 109826 counting only the distinct ones).

The product of its (nonzero) digits is 8100, while the sum is 32.

The square root of 54909500 is about 7410.0944663344. The cubic root of 54909500 is about 380.0865453847.

The spelling of 54909500 in words is "fifty-four million, nine hundred nine thousand, five hundred".

Divisors: 1 2 4 5 10 20 25 50 100 125 250 500 109819 219638 439276 549095 1098190 2196380 2745475 5490950 10981900 13727375 27454750 54909500