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50423980 = 22531167487
BaseRepresentation
bin1100000001011…
…0100010101100
310111212210200211
43000112202230
5100402031410
65000432204
71151411455
oct300264254
9114783624
1050423980
1126510312
1214a78664
13a5a6399
1469a812c
15466068a
hex30168ac

50423980 has 48 divisors (see below), whose sum is σ = 110186496. Its totient is φ = 19362240.

The previous prime is 50423963. The next prime is 50424001. The reversal of 50423980 is 8932405.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 103297 + ... + 103783.

It is an arithmetic number, because the mean of its divisors is an integer number (2295552).

Almost surely, 250423980 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 50423980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (55093248).

50423980 is an abundant number, since it is smaller than the sum of its proper divisors (59762516).

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

50423980 is a wasteful number, since it uses less digits than its factorization.

50423980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 694 (or 692 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 50423980 is about 7100.9844387944. The cubic root of 50423980 is about 369.4415241549.

The spelling of 50423980 in words is "fifty million, four hundred twenty-three thousand, nine hundred eighty".

Divisors: 1 2 4 5 10 20 31 62 124 155 167 310 334 487 620 668 835 974 1670 1948 2435 3340 4870 5177 9740 10354 15097 20708 25885 30194 51770 60388 75485 81329 103540 150970 162658 301940 325316 406645 813290 1626580 2521199 5042398 10084796 12605995 25211990 50423980