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1232101000 = 23531394777
BaseRepresentation
bin100100101110000…
…0101111010001000
310011212102012211101
41021130011322020
510010404213000
6322132111144
742350454124
oct11134057210
93155365741
101232101000
11582541799
122a47654b4
13168353860
14b98c8584
157327be6a
hex49705e88

1232101000 has 64 divisors (see below), whose sum is σ = 3104927280. Its totient is φ = 454924800.

The previous prime is 1232100967. The next prime is 1232101001. The reversal of 1232101000 is 1012321.

It can be written as a sum of positive squares in 8 ways, for example, as 54375876 + 1177725124 = 7374^2 + 34318^2 .

It is a Harshad number since it is a multiple of its sum of digits (10).

It is not an unprimeable number, because it can be changed into a prime (1232101001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34389 + ... + 60388.

Almost surely, 21232101000 is an apocalyptic number.

1232101000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1232101000 is an abundant number, since it is smaller than the sum of its proper divisors (1872826280).

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

1232101000 is a wasteful number, since it uses less digits than its factorization.

1232101000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94811 (or 94797 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 10.

The square root of 1232101000 is about 35101.2962723601. The cubic root of 1232101000 is about 1072.0509763574.

Adding to 1232101000 its reverse (1012321), we get a palindrome (1233113321).

The spelling of 1232101000 in words is "one billion, two hundred thirty-two million, one hundred one thousand".

Divisors: 1 2 4 5 8 10 13 20 25 26 40 50 52 65 100 104 125 130 200 250 260 325 500 520 650 1000 1300 1625 2600 3250 6500 13000 94777 189554 379108 473885 758216 947770 1232101 1895540 2369425 2464202 3791080 4738850 4928404 6160505 9477700 9856808 11847125 12321010 18955400 23694250 24642020 30802525 47388500 49284040 61605050 94777000 123210100 154012625 246420200 308025250 616050500 1232101000