Search a number
-
+
1023100220 = 2251914391871
BaseRepresentation
bin111100111110110…
…100010100111100
32122022010212122202
4330332310110330
54043403201340
6245304331032
734232131322
oct7476642474
92568125582
101023100220
1148557137a
12246773a78
13133c6775c
1499c41d12
155ec45c15
hex3cfb453c

1023100220 has 48 divisors (see below), whose sum is σ = 2264371200. Its totient is φ = 387224640.

The previous prime is 1023100219. The next prime is 1023100249. The reversal of 1023100220 is 220013201.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 545885 + ... + 547755.

It is an arithmetic number, because the mean of its divisors is an integer number (47174400).

Almost surely, 21023100220 is an apocalyptic number.

1023100220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1023100220 is an abundant number, since it is smaller than the sum of its proper divisors (1241270980).

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

1023100220 is a wasteful number, since it uses less digits than its factorization.

1023100220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3338 (or 3336 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 1023100220 is about 31985.9378477480. The cubic root of 1023100220 is about 1007.6415315909.

Adding to 1023100220 its reverse (220013201), we get a palindrome (1243113421).

The spelling of 1023100220 in words is "one billion, twenty-three million, one hundred thousand, two hundred twenty".

Divisors: 1 2 4 5 10 19 20 38 76 95 190 380 1439 1871 2878 3742 5756 7195 7484 9355 14390 18710 27341 28780 35549 37420 54682 71098 109364 136705 142196 177745 273410 355490 546820 710980 2692369 5384738 10769476 13461845 26923690 51155011 53847380 102310022 204620044 255775055 511550110 1023100220