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54980838 = 23211713911
BaseRepresentation
bin1101000110111…
…1000011100110
310211110022112100
43101233003212
5103033341323
65242232530
71235220663
oct321570346
9124408470
1054980838
1129042a10
12164b5746
13b510553
147432a6a
154c60943
hex346f0e6

54980838 has 48 divisors (see below), whose sum is σ = 131818752. Its totient is φ = 16422000.

The previous prime is 54980819. The next prime is 54980843. The reversal of 54980838 is 83808945.

It is a junction number, because it is equal to n+sod(n) for n = 54980793 and 54980802.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12103 + ... + 16013.

It is an arithmetic number, because the mean of its divisors is an integer number (2746224).

Almost surely, 254980838 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 54980838, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65909376).

54980838 is an abundant number, since it is smaller than the sum of its proper divisors (76837914).

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

54980838 is a wasteful number, since it uses less digits than its factorization.

54980838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4001 (or 3998 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 45.

The square root of 54980838 is about 7414.9064727750. The cubic root of 54980838 is about 380.2510759915.

The spelling of 54980838 in words is "fifty-four million, nine hundred eighty thousand, eight hundred thirty-eight".

Divisors: 1 2 3 6 9 11 18 22 33 66 71 99 142 198 213 426 639 781 1278 1562 2343 3911 4686 7029 7822 11733 14058 23466 35199 43021 70398 86042 129063 258126 277681 387189 555362 774378 833043 1666086 2499129 3054491 4998258 6108982 9163473 18326946 27490419 54980838