Search a number
-
+
283974072 = 233106311131
BaseRepresentation
bin10000111011010…
…001100110111000
3201210100101012020
4100323101212320
51040144132242
644102314440
710015511514
oct2073214670
9653311166
10283974072
11136328a18
127b128a20
1346aa94c5
1429a01144
1519de56ec
hex10ed19b8

283974072 has 32 divisors (see below), whose sum is σ = 710666880. Its totient is φ = 94560480.

The previous prime is 283974059. The next prime is 283974101. The reversal of 283974072 is 270479382.

It is a super-2 number, since 2×2839740722 = 161282547136522368, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19947 + ... + 31077.

It is an arithmetic number, because the mean of its divisors is an integer number (22208340).

Almost surely, 2283974072 is an apocalyptic number.

It is an amenable number.

283974072 is an abundant number, since it is smaller than the sum of its proper divisors (426692808).

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

283974072 is a wasteful number, since it uses less digits than its factorization.

283974072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12203 (or 12199 counting only the distinct ones).

The product of its (nonzero) digits is 169344, while the sum is 42.

The square root of 283974072 is about 16851.5302569233. The cubic root of 283974072 is about 657.2938412099.

The spelling of 283974072 in words is "two hundred eighty-three million, nine hundred seventy-four thousand, seventy-two".

Divisors: 1 2 3 4 6 8 12 24 1063 2126 3189 4252 6378 8504 11131 12756 22262 25512 33393 44524 66786 89048 133572 267144 11832253 23664506 35496759 47329012 70993518 94658024 141987036 283974072