Search a number
-
+
1022103220 = 22571719791
BaseRepresentation
bin111100111011000…
…000111010110100
32122020021020000211
4330323000322310
54043124300340
6245231115204
734220506525
oct7473007264
92566236024
101022103220
11484a50306
12246372b04
131339a8a08
1499a6284c
155eaea5ea
hex3cec0eb4

1022103220 has 24 divisors (see below), whose sum is σ = 2176651008. Its totient is φ = 403082400.

The previous prime is 1022103217. The next prime is 1022103253. The reversal of 1022103220 is 223012201.

It is a self number, because there is not a number n which added to its sum of digits gives 1022103220.

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, 358476 + ... + 361315.

It is an arithmetic number, because the mean of its divisors is an integer number (90693792).

Almost surely, 21022103220 is an apocalyptic number.

1022103220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1022103220 is an abundant number, since it is smaller than the sum of its proper divisors (1154547788).

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

1022103220 is a wasteful number, since it uses less digits than its factorization.

1022103220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 719871 (or 719869 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 1022103220 is about 31970.3490753542. The cubic root of 1022103220 is about 1007.3141133204.

Adding to 1022103220 its reverse (223012201), we get a palindrome (1245115421).

The spelling of 1022103220 in words is "one billion, twenty-two million, one hundred three thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 71 142 284 355 710 1420 719791 1439582 2879164 3598955 7197910 14395820 51105161 102210322 204420644 255525805 511051610 1022103220