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1030021230 = 235710148563
BaseRepresentation
bin111101011001001…
…110000001101110
32122210011111111110
4331121032001232
54102141134410
6250112532450
734345015230
oct7531160156
92583144443
101030021230
11489469217
12248b51126
1313551ba24
149ab24250
1560661720
hex3d64e06e

1030021230 has 64 divisors (see below), whose sum is σ = 2853232128. Its totient is φ = 233097600.

The previous prime is 1030021219. The next prime is 1030021231. The reversal of 1030021230 is 321200301.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1030021231) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3072 + ... + 45491.

It is an arithmetic number, because the mean of its divisors is an integer number (44581752).

Almost surely, 21030021230 is an apocalyptic number.

1030021230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1030021230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1426616064).

1030021230 is an abundant number, since it is smaller than the sum of its proper divisors (1823210898).

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

1030021230 is a wasteful number, since it uses less digits than its factorization.

1030021230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48681.

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 1030021230 is about 32093.9438212258. The cubic root of 1030021230 is about 1009.9085725821.

Adding to 1030021230 its reverse (321200301), we get a palindrome (1351221531).

The spelling of 1030021230 in words is "one billion, thirty million, twenty-one thousand, two hundred thirty".

Divisors: 1 2 3 5 6 7 10 14 15 21 30 35 42 70 101 105 202 210 303 505 606 707 1010 1414 1515 2121 3030 3535 4242 7070 10605 21210 48563 97126 145689 242815 291378 339941 485630 679882 728445 1019823 1456890 1699705 2039646 3399410 4904863 5099115 9809726 10198230 14714589 24524315 29429178 34334041 49048630 68668082 73572945 103002123 147145890 171670205 206004246 343340410 515010615 1030021230