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51754340 = 22511367641
BaseRepresentation
bin1100010101101…
…1010101100100
310121101101121102
43011123111210
5101222114330
65045135232
71165622201
oct305332544
9117341542
1051754340
1127239890
12153ba518
13a950a91
146c32ca8
154824945
hex315b564

51754340 has 48 divisors (see below), whose sum is σ = 119073024. Its totient is φ = 18739200.

The previous prime is 51754337. The next prime is 51754349. The reversal of 51754340 is 4345715.

51754340 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (51754349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 80420 + ... + 81060.

It is an arithmetic number, because the mean of its divisors is an integer number (2480688).

Almost surely, 251754340 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 51754340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59536512).

51754340 is an abundant number, since it is smaller than the sum of its proper divisors (67318684).

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

51754340 is a wasteful number, since it uses less digits than its factorization.

51754340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1028 (or 1026 counting only the distinct ones).

The product of its (nonzero) digits is 8400, while the sum is 29.

The square root of 51754340 is about 7194.0489294972. The cubic root of 51754340 is about 372.6624128484.

The spelling of 51754340 in words is "fifty-one million, seven hundred fifty-four thousand, three hundred forty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 220 367 641 734 1282 1468 1835 2564 3205 3670 4037 6410 7051 7340 8074 12820 14102 16148 20185 28204 35255 40370 70510 80740 141020 235247 470494 940988 1176235 2352470 2587717 4704940 5175434 10350868 12938585 25877170 51754340