Search a number
-
+
80028002 = 2731374001
BaseRepresentation
bin1001100010100…
…10000101100010
312120120211210002
410301102011202
5130441344002
611535140002
71661140535
oct461220542
9176524702
1080028002
11411a024a
1222974602
1313770062
14a8b2a1c
15705c002
hex4c52162

80028002 has 16 divisors (see below), whose sum is σ = 122605272. Its totient is φ = 39168000.

The previous prime is 80027989. The next prime is 80028043. The reversal of 80028002 is 20082008.

It can be written as a sum of positive squares in 4 ways, for example, as 54007801 + 26020201 = 7349^2 + 5101^2 .

It is a super-2 number, since 2×800280022 = 12808962208224008, which contains 22 as substring.

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, 18002 + ... + 22002.

Almost surely, 280028002 is an apocalyptic number.

80028002 is a deficient number, since it is larger than the sum of its proper divisors (42577270).

80028002 is a wasteful number, since it uses less digits than its factorization.

80028002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4213.

The product of its (nonzero) digits is 256, while the sum is 20.

The square root of 80028002 is about 8945.8371324320. The cubic root of 80028002 is about 430.9372058753.

The spelling of 80028002 in words is "eighty million, twenty-eight thousand, two".

Divisors: 1 2 73 137 146 274 4001 8002 10001 20002 292073 548137 584146 1096274 40014001 80028002