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4971904 = 27731179
BaseRepresentation
bin10010111101110110000000
3100100121011121
4102331312000
52233100104
6254322024
760155230
oct22756600
910317147
104971904
112896513
1217b9314
131051072
14935cc0
15683254
hex4bdd80

4971904 has 64 divisors (see below), whose sum is σ = 11750400. Its totient is φ = 2050560.

The previous prime is 4971893. The next prime is 4971907. The reversal of 4971904 is 4091794.

It is a tau number, because it is divible by the number of its divisors (64).

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 4971904.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4971907) 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 7 ways as a sum of consecutive naturals, for example, 27687 + ... + 27865.

It is an arithmetic number, because the mean of its divisors is an integer number (183600).

Almost surely, 24971904 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4971904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5875200).

4971904 is an abundant number, since it is smaller than the sum of its proper divisors (6778496).

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

4971904 is a wasteful number, since it uses less digits than its factorization.

4971904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231 (or 219 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 34.

The square root of 4971904 is about 2229.7766704314. The cubic root of 4971904 is about 170.6767029688.

It can be divided in two parts, 497 and 1904, that added together give a 4-th power (2401 = 74).

The spelling of 4971904 in words is "four million, nine hundred seventy-one thousand, nine hundred four".

Divisors: 1 2 4 7 8 14 16 28 31 32 56 62 64 112 124 128 179 217 224 248 358 434 448 496 716 868 896 992 1253 1432 1736 1984 2506 2864 3472 3968 5012 5549 5728 6944 10024 11098 11456 13888 20048 22196 22912 27776 38843 40096 44392 77686 80192 88784 155372 160384 177568 310744 355136 621488 710272 1242976 2485952 4971904