Search a number
-
+
20070984 = 233836291
BaseRepresentation
bin100110010010…
…0001001001000
31101202201012210
41030210021020
520114232414
61554105120
7332412663
oct114441110
941681183
1020070984
111036969a
12687b1a0
13420982b
1429466da
151b66e59
hex1324248

20070984 has 16 divisors (see below), whose sum is σ = 50177520. Its totient is φ = 6690320.

The previous prime is 20070979. The next prime is 20070991. The reversal of 20070984 is 48907002.

It is a super-3 number, since 3×200709843 (a number of 23 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 418122 + ... + 418169.

It is an arithmetic number, because the mean of its divisors is an integer number (3136095).

Almost surely, 220070984 is an apocalyptic number.

20070984 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

20070984 is an abundant number, since it is smaller than the sum of its proper divisors (30106536).

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

20070984 is a wasteful number, since it uses less digits than its factorization.

20070984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 836300 (or 836296 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 30.

The square root of 20070984 is about 4480.0651780973. The cubic root of 20070984 is about 271.7625161844.

Adding to 20070984 its reverse (48907002), we get a palindrome (68977986).

The spelling of 20070984 in words is "twenty million, seventy thousand, nine hundred eighty-four".

Divisors: 1 2 3 4 6 8 12 24 836291 1672582 2508873 3345164 5017746 6690328 10035492 20070984