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50311400 = 23521072351
BaseRepresentation
bin1011111111101…
…1000011101000
310111200002021012
42333323003220
5100334431100
64554203052
71150432316
oct277730350
9114602235
1050311400
1126443777
1214a23488
13a567079
1469790b6
15463c135
hex2ffb0e8

50311400 has 48 divisors (see below), whose sum is σ = 118117440. Its totient is φ = 19928000.

The previous prime is 50311343. The next prime is 50311409. The reversal of 50311400 is 411305.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50311409) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20225 + ... + 22575.

It is an arithmetic number, because the mean of its divisors is an integer number (2460780).

Almost surely, 250311400 is an apocalyptic number.

50311400 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 50311400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59058720).

50311400 is an abundant number, since it is smaller than the sum of its proper divisors (67806040).

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

50311400 is a wasteful number, since it uses less digits than its factorization.

50311400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2474 (or 2465 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 14.

The square root of 50311400 is about 7093.0529393203. The cubic root of 50311400 is about 369.1663725390.

Adding to 50311400 its reverse (411305), we get a palindrome (50722705).

The spelling of 50311400 in words is "fifty million, three hundred eleven thousand, four hundred".

Divisors: 1 2 4 5 8 10 20 25 40 50 100 107 200 214 428 535 856 1070 2140 2351 2675 4280 4702 5350 9404 10700 11755 18808 21400 23510 47020 58775 94040 117550 235100 251557 470200 503114 1006228 1257785 2012456 2515570 5031140 6288925 10062280 12577850 25155700 50311400