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23100010400 = 255259489407
BaseRepresentation
bin10101100000110111…
…100010111110100000
32012121212202010001202
4111200313202332200
5334302100313100
614340105220332
71445303564045
oct254067427640
965555663052
1023100010400
119884398795
1245881916a8
132241a0760c
141191cc31cc
15902eb77d5
hex560de2fa0

23100010400 has 72 divisors (see below), whose sum is σ = 57348829440. Its totient is φ = 9083375360.

The previous prime is 23100010393. The next prime is 23100010421. The reversal of 23100010400 is 401000132.

It is a happy number.

It is a super-2 number, since 2×231000104002 (a number of 22 digits) contains 22 as substring.

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, 197504 + ... + 291903.

It is an arithmetic number, because the mean of its divisors is an integer number (796511520).

Almost surely, 223100010400 is an apocalyptic number.

23100010400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23100010400 is an abundant number, since it is smaller than the sum of its proper divisors (34248819040).

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

23100010400 is a wasteful number, since it uses less digits than its factorization.

23100010400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 489486 (or 489473 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 11.

Adding to 23100010400 its reverse (401000132), we get a palindrome (23501010532).

The spelling of 23100010400 in words is "twenty-three billion, one hundred million, ten thousand, four hundred".

Divisors: 1 2 4 5 8 10 16 20 25 32 40 50 59 80 100 118 160 200 236 295 400 472 590 800 944 1180 1475 1888 2360 2950 4720 5900 9440 11800 23600 47200 489407 978814 1957628 2447035 3915256 4894070 7830512 9788140 12235175 15661024 19576280 24470350 28875013 39152560 48940700 57750026 78305120 97881400 115500052 144375065 195762800 231000104 288750130 391525600 462000208 577500260 721875325 924000416 1155000520 1443750650 2310001040 2887501300 4620002080 5775002600 11550005200 23100010400