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13403231000 = 235318174051
BaseRepresentation
bin11000111101110010…
…10001001100011000
31021121002112200101222
430132321101030120
5204422211343000
610053553431212
7653100404135
oct143671211430
937532480358
1013403231000
115758857915
12272086b508
131357aa4b23
1491213158c
15536a52a85
hex31ee51318

13403231000 has 64 divisors (see below), whose sum is σ = 31537265760. Its totient is φ = 5331600000.

The previous prime is 13403230999. The next prime is 13403231027. The reversal of 13403231000 is 13230431.

It is a happy number.

It is a super-2 number, since 2×134032310002 (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 13403231000.

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, 143975 + ... + 218025.

Almost surely, 213403231000 is an apocalyptic number.

13403231000 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 13403231000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15768632880).

13403231000 is an abundant number, since it is smaller than the sum of its proper divisors (18134034760).

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

13403231000 is a wasteful number, since it uses less digits than its factorization.

13403231000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74253 (or 74239 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 13403231000 its reverse (13230431), we get a palindrome (13416461431).

The spelling of 13403231000 in words is "thirteen billion, four hundred three million, two hundred thirty-one thousand".

Divisors: 1 2 4 5 8 10 20 25 40 50 100 125 181 200 250 362 500 724 905 1000 1448 1810 3620 4525 7240 9050 18100 22625 36200 45250 74051 90500 148102 181000 296204 370255 592408 740510 1481020 1851275 2962040 3702550 7405100 9256375 13403231 14810200 18512750 26806462 37025500 53612924 67016155 74051000 107225848 134032310 268064620 335080775 536129240 670161550 1340323100 1675403875 2680646200 3350807750 6701615500 13403231000