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1040203230 = 235117694099
BaseRepresentation
bin111110000000000…
…011110111011110
32200111022210120120
4332000003313132
54112243000410
6251115055410
734530403323
oct7600036736
92614283516
101040203230
114941930a0
12250441566
13137675391
149c214b4a
15614c3570
hex3e003dde

1040203230 has 64 divisors (see below), whose sum is σ = 2727648000. Its totient is φ = 251781120.

The previous prime is 1040203193. The next prime is 1040203231. The reversal of 1040203230 is 323020401.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1040203231) 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, 251721 + ... + 255819.

It is an arithmetic number, because the mean of its divisors is an integer number (42619500).

Almost surely, 21040203230 is an apocalyptic number.

1040203230 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 1040203230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1363824000).

1040203230 is an abundant number, since it is smaller than the sum of its proper divisors (1687444770).

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

1040203230 is a wasteful number, since it uses less digits than its factorization.

1040203230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4889.

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 1040203230 is about 32252.1817866637. The cubic root of 1040203230 is about 1013.2253945173.

Adding to 1040203230 its reverse (323020401), we get a palindrome (1363223631).

The spelling of 1040203230 in words is "one billion, forty million, two hundred three thousand, two hundred thirty".

Divisors: 1 2 3 5 6 10 11 15 22 30 33 55 66 110 165 330 769 1538 2307 3845 4099 4614 7690 8198 8459 11535 12297 16918 20495 23070 24594 25377 40990 42295 45089 50754 61485 84590 90178 122970 126885 135267 225445 253770 270534 450890 676335 1352670 3152131 6304262 9456393 15760655 18912786 31521310 34673441 47281965 69346882 94563930 104020323 173367205 208040646 346734410 520101615 1040203230