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1234033220 = 225717350951
BaseRepresentation
bin100100110001101…
…1101101001000100
310012000001101100002
41021203131221010
510011403030340
6322241340432
742403052330
oct11143355104
93160041302
101234033220
11583641472
122a5337718
1316887c194
14b9c6c7c0
157350e715
hex498dda44

1234033220 has 48 divisors (see below), whose sum is σ = 2978857728. Its totient is φ = 420643200.

The previous prime is 1234033183. The next prime is 1234033249. The reversal of 1234033220 is 223304321.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 1234033192 and 1234033201.

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, 1256 + ... + 49695.

It is an arithmetic number, because the mean of its divisors is an integer number (62059536).

Almost surely, 21234033220 is an apocalyptic number.

1234033220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1234033220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1489428864).

1234033220 is an abundant number, since it is smaller than the sum of its proper divisors (1744824508).

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

1234033220 is a wasteful number, since it uses less digits than its factorization.

1234033220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51140 (or 51138 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 1234033220 is about 35128.8089749710. The cubic root of 1234033220 is about 1072.6110918155.

Adding to 1234033220 its reverse (223304321), we get a palindrome (1457337541).

The spelling of 1234033220 in words is "one billion, two hundred thirty-four million, thirty-three thousand, two hundred twenty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 173 346 692 865 1211 1730 2422 3460 4844 6055 12110 24220 50951 101902 203804 254755 356657 509510 713314 1019020 1426628 1783285 3566570 7133140 8814523 17629046 35258092 44072615 61701661 88145230 123403322 176290460 246806644 308508305 617016610 1234033220