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54855430 = 25717311487
BaseRepresentation
bin1101000101000…
…0011100000110
310211012221111121
43101100130012
5103020333210
65235424154
71234156240
oct321203406
9124187447
1054855430
1128a67773
121645505a
13b498446
1473dd090
154c386da
hex3450706

54855430 has 64 divisors (see below), whose sum is σ = 123420672. Its totient is φ = 17118720.

The previous prime is 54855421. The next prime is 54855433. The reversal of 54855430 is 3455845.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54855433) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 36147 + ... + 37633.

It is an arithmetic number, because the mean of its divisors is an integer number (1928448).

Almost surely, 254855430 is an apocalyptic number.

54855430 is an abundant number, since it is smaller than the sum of its proper divisors (68565242).

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

54855430 is a wasteful number, since it uses less digits than its factorization.

54855430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1549.

The product of its (nonzero) digits is 48000, while the sum is 34.

The square root of 54855430 is about 7406.4451662049. The cubic root of 54855430 is about 379.9617459183.

The spelling of 54855430 in words is "fifty-four million, eight hundred fifty-five thousand, four hundred thirty".

Divisors: 1 2 5 7 10 14 17 31 34 35 62 70 85 119 155 170 217 238 310 434 527 595 1054 1085 1190 1487 2170 2635 2974 3689 5270 7378 7435 10409 14870 18445 20818 25279 36890 46097 50558 52045 92194 104090 126395 176953 230485 252790 322679 353906 460970 645358 783649 884765 1567298 1613395 1769530 3226790 3918245 5485543 7836490 10971086 27427715 54855430