Search a number
-
+
38684295500 = 2253313767453
BaseRepresentation
bin100100000001110000…
…111000000101001100
310200211222022211020012
4210001300320011030
51113211134424000
625434334412352
72536430041424
oct440160700514
9120758284205
1038684295500
1115451304854
1275b73610b8
1338566093a6
141c2d95d484
151016243735
hex901c3814c

38684295500 has 96 divisors (see below), whose sum is σ = 89570277888. Its totient is φ = 14569632000.

The previous prime is 38684295487. The next prime is 38684295511. The reversal of 38684295500 is 559248683.

It is a Harshad number since it is a multiple of its sum of digits (50).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 539774 + ... + 607226.

It is an arithmetic number, because the mean of its divisors is an integer number (933023728).

Almost surely, 238684295500 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 38684295500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44785138944).

38684295500 is an abundant number, since it is smaller than the sum of its proper divisors (50885982388).

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

38684295500 is a wasteful number, since it uses less digits than its factorization.

38684295500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67540 (or 67528 counting only the distinct ones).

The product of its (nonzero) digits is 2073600, while the sum is 50.

The spelling of 38684295500 in words is "thirty-eight billion, six hundred eighty-four million, two hundred ninety-five thousand, five hundred".

Divisors: 1 2 4 5 10 20 25 31 37 50 62 74 100 124 125 148 155 185 250 310 370 500 620 740 775 925 1147 1550 1850 2294 3100 3700 3875 4588 4625 5735 7750 9250 11470 15500 18500 22940 28675 57350 67453 114700 134906 143375 269812 286750 337265 573500 674530 1349060 1686325 2091043 2495761 3372650 4182086 4991522 6745300 8364172 8431625 9983044 10455215 12478805 16863250 20910430 24957610 33726500 41820860 49915220 52276075 62394025 77368591 104552150 124788050 154737182 209104300 249576100 261380375 309474364 311970125 386842955 522760750 623940250 773685910 1045521500 1247880500 1547371820 1934214775 3868429550 7736859100 9671073875 19342147750 38684295500