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385813036 = 22747594969
BaseRepresentation
bin10110111111110…
…000101000101100
3222212222022222201
4112333300220230
51242232004121
6102141151244
712363233230
oct2677605054
9885868881
10385813036
11188866054
12a925b524
1361c1504b
14393505c0
1523d0ee91
hex16ff0a2c

385813036 has 48 divisors (see below), whose sum is σ = 801561600. Its totient is φ = 159055488.

The previous prime is 385813033. The next prime is 385813049. The reversal of 385813036 is 630318583.

It is a junction number, because it is equal to n+sod(n) for n = 385812986 and 385813004.

It is not an unprimeable number, because it can be changed into a prime (385813033) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 75160 + ... + 80128.

It is an arithmetic number, because the mean of its divisors is an integer number (16699200).

Almost surely, 2385813036 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 385813036, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (400780800).

385813036 is an abundant number, since it is smaller than the sum of its proper divisors (415748564).

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

385813036 is a wasteful number, since it uses less digits than its factorization.

385813036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5086 (or 5084 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 37.

The square root of 385813036 is about 19642.1240195657. The cubic root of 385813036 is about 727.9903668773.

The spelling of 385813036 in words is "three hundred eighty-five million, eight hundred thirteen thousand, thirty-six".

Divisors: 1 2 4 7 14 28 47 59 94 118 188 236 329 413 658 826 1316 1652 2773 4969 5546 9938 11092 19411 19876 34783 38822 69566 77644 139132 233543 293171 467086 586342 934172 1172684 1634801 2052197 3269602 4104394 6539204 8208788 13779037 27558074 55116148 96453259 192906518 385813036