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54903969 = 3217773433
BaseRepresentation
bin1101000101110…
…0010010100001
310211022102002100
43101130102201
5103023411334
65240441013
71234450611
oct321342241
9124272070
1054903969
1128aa018a
1216479169
13b4b4573
147412a41
154c47c99
hex345c4a1

54903969 has 12 divisors (see below), whose sum is σ = 79373476. Its totient is φ = 36571392.

The previous prime is 54903923. The next prime is 54903971. The reversal of 54903969 is 96930945.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 22924944 + 31979025 = 4788^2 + 5655^2 .

It is not a de Polignac number, because 54903969 - 28 = 54903713 is a prime.

It is a super-2 number, since 2×549039692 = 6028891623905922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54903869) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14277 + ... + 17709.

Almost surely, 254903969 is an apocalyptic number.

It is an amenable number.

54903969 is a deficient number, since it is larger than the sum of its proper divisors (24469507).

54903969 is a wasteful number, since it uses less digits than its factorization.

54903969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5216 (or 5213 counting only the distinct ones).

The product of its (nonzero) digits is 262440, while the sum is 45.

The square root of 54903969 is about 7409.7212498177. The cubic root of 54903969 is about 380.0737829952.

The spelling of 54903969 in words is "fifty-four million, nine hundred three thousand, nine hundred sixty-nine".

Divisors: 1 3 9 1777 3433 5331 10299 15993 30897 6100441 18301323 54903969