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23230402400 = 2552226712809
BaseRepresentation
bin10101101000101000…
…111100111101100000
32012221222002201021002
4111220220330331200
5340033440334100
614401044051132
71451446106462
oct255050747540
965858081232
1023230402400
119940a58177
124603993aa8
132262a2c64a
1411a5346132
1590e6722d5
hex568a3cf60

23230402400 has 72 divisors (see below), whose sum is σ = 56740665240. Its totient is φ = 9287336960.

The previous prime is 23230402343. The next prime is 23230402417. The reversal of 23230402400 is 420403232.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1807196 + ... + 1820004.

It is an arithmetic number, because the mean of its divisors is an integer number (788064795).

Almost surely, 223230402400 is an apocalyptic number.

23230402400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23230402400 is an abundant number, since it is smaller than the sum of its proper divisors (33510262840).

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

23230402400 is a wasteful number, since it uses less digits than its factorization.

23230402400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15096 (or 15083 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 20.

Adding to 23230402400 its reverse (420403232), we get a palindrome (23650805632).

The spelling of 23230402400 in words is "twenty-three billion, two hundred thirty million, four hundred two thousand, four hundred".

Divisors: 1 2 4 5 8 10 16 20 25 32 40 50 80 100 160 200 400 800 2267 4534 9068 11335 12809 18136 22670 25618 36272 45340 51236 56675 64045 72544 90680 102472 113350 128090 181360 204944 226700 256180 320225 362720 409888 453400 512360 640450 906800 1024720 1280900 1813600 2049440 2561800 5123600 10247200 29038003 58076006 116152012 145190015 232304024 290380030 464608048 580760060 725950075 929216096 1161520120 1451900150 2323040240 2903800300 4646080480 5807600600 11615201200 23230402400